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Introduction

Smooth Stability has recently entered the stabilizer market and created quite a few ripples with their unique look and design. There have been other perimeter weighted stabilizers designed and sold, but the Smooth Stability has taken the idea to new extremes. The company was started by Jason and Ryan, who work in a machine shop together and decided to build and market their design.

Construction

The base consists of a carbon rod capped on one end with a male thread that mates with the bow riser and a female thread on the other. The aluminum hub has a ring on the outside that attaches to the individual weights and three spokes that meet in the center; a pan head bolt holds the base to the hub. Each weighted ring is attached to either to the hub or the previous ring via three screws and are easily attached or removed. Each stackable weight weighs five ounces. Standard models are black throughout with hunting models available with a camouflage wrap around the base.

The hub weighs 3 oz., each weight is 5 oz. (5.2 oz. including screws) and the base will approximately vary from 2 oz. to 3.5 oz. depending on the length.

Theory of Operation

The idea behind the Smooth Stability system is to increase the moment of inertia of the entire shooting system. As the moment of inertia of a system increases in any direction, it resists bending and rotation in that direction. Increasing the moment of inertia can be done by adding mass and/or moving the mass further from the axis of rotation. Smooth Stability stabilizers accomplish this by putting the mass as far from the centers of rotation as possible. By using a lightweight carbon rod as the base, the weight is moved as far from the front of the bow as possible. To compliment this, the weight is also moved as far from the center axis of the rod as possible by using the hoop design. This places much of the mass of the stabilizer away from the plane that runs through the center of the riser and through the string. This helps keep the bow from rotating in the palm and reduces the likelihood of hand torque.

Price and availability

At the time of this review, the standard cost for a black model is $99.99 with a 4, 6, 8 or 12 inch base option. Camouflage wrapping adds and additional $10.00 and additional 5 oz. weights are $14.99. They are available directly from smoothstability.com or from a few various dealers listed on the main website.

First Impressions

For this review Smooth Stability supplied Archery Report with a 12″ hunting model that included two 5 oz. weights for a total weight of 16.85 oz. None of the aluminum parts have obvious machine marks and all are anodized black. Each weight has a Smooth Stability logo around the perimeter in white that stands out, but is not overbearing. The base appears well built and the entire impression is one of quality. It is readily apparent that the base is extremely lightweight and all the weight is concentrated on the end.

The unique look of the Smooth Stability is a definite attention getter. Tales have been told across the internet of shooters pulling out a Smooth Stability, being made fun of and becoming the center of much attention. Disbelievers are quickly put to rest after the ability of the stabilizer to perform is demonstrated. I personally like the unique look and love to see designers and manufactures departing from the norm and trying something new and exciting.

Testing

Because the fletching review is running concurrent with this review, I was able to shoot over 300 shots through an Ultra Elite XT2000 in one afternoon while using the Smooth Stability. The majority of these shots were made with both 5 oz. weights attached as I tend to prefer a heavier bow.

The first thing I noticed is that with the weight so heavily concentrated on the end, the bow had a slight amount more of forward tilt than my normal stabilizer (which is quite heavy itself, but does not concentrate the weight at the extreme end as effectively.) Also, when at full draw there was more resistance to hand torque once settled in. At first my eye was distracted by the massive ring sitting out on the end of my bow, but after the first few initial shots this feeling dissipated.

An Ultra Elite does not use parallel limb technology and thus has a definite forward kick at the shot. It also tends to twist just a little bit on the shot because of forward jump and the imbalance created by the sight, rest and cable guard being on the same side of the bow. Traditionally I use one v-bar on the left side of the bow to counteract this effect. However, with the Smooth Stability installed without a v-bar, the twist and jump were significantly less noticeable. The large radius perimeter weighting definitely holds an advantage in this case over a stabilizer that does not move the weight away from the center plane of the bow.

After a couple hundred of shots in fairly rapid succession (I was chronographing these shots with different fletchings) my left shoulder started to become fatigued. At this point I removed one of the weights and continued shooting without rest. It was easier to hold the bow up with the lighter weight, but the side to side and torque stability was noticably lessened. Towards the end of the day’s shooting I slowed down the shots and put the additional weight back on the stabilizer. When shooting an arrow approximately every thirty seconds, I felt no fatigue and received all the benefits of the heavier perimeter weighting.

For further testing I put the Smooth Stability on an Elite Envy that is my main hunting setup. This bow is set at 70 lbs. and has a completely different feel with it’s parallel limbs and extremely aggressive cam. The bow was also fully loaded with a quiver and string suppressor. At full draw the bow held rock steady and balanced beautifully. Even in a stiff breeze the bow held well and was a pleasure to shoot. For a hunting setup I would be tempted to go with a shorter base, but after feeling how well the 12″ base held, it would be difficult to give up shootablity to save a little length and weight in the woods. The black hub and weights coupled with the camouflage base looks quite sharp with the same color combination on the Envy. It’s all about performance while hunting, but it doesn’t hurt to look good as well!

Final words

Smooth Stability stabilizers are well built and well designed. I was particularly impressed with the design of the stabilizer as it is simple yet very effective; the construction is high quality and looks great. Because of the high amount of machining and the carbon base construction, the price of a stabilizer system is quite high, yet for a shooter that is looking for top end performance or a hunter looking for rock solid holding in adverse conditions, it is well worth the price. There is also the uniqueness factor and the Smooth Stability is sure to garner lots of looks and questions at the range.

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