Hello Tight Lines, not sure if your name is Harry, but I am very interested in your PermaWrist. Can you explain why it is better than the Leverage Band? I plan to purchase one until I noticed this thread and might get your band instead. Thank you
It's a great question, and while I'm not TightLines/Harry, I can also try to answer this question from a consumer's perspective who's evaluating both, and not as a vendor nor do I have any affiliation with the vendor, so I don't think I'd risk getting banned or anything.
First of all, the Leverage Band will cost you $35 out the door ($25 sale price and $10 shipping cost inside US). The PermaWrist will cost you only $22 out the door ($20 for item and $2 for shipping).
With respect to the arm band, I think they're pretty comparable. They're both Velcro based that you strap on your arm. I think the PermaWrist arm band is easier to put on by yourself because you loop the velcro strap through the rectangular loop which allows you to pull the strap backward to tighten up the band around your arm easily by yourself. The Leverage Band doesn't have this so while you can put it on yourself, it's harder to get it tightened by yourself once it's in place. You'd almost have to wrap the band around tightly initially up front, and that's a 2-handed effort while you only have 1 hand available, unless somebody else helps put it on for you.
The PermaWrist arm band is also slightly wider than the Leverage Band, which I think will help reduce the chance to slip down the arm due to a larger contact area.
In terms of the rubber band, the Leverage band has the plastic clip on both ends. You would clip one end on your racket at the bottom of the frame (for forehand/back hand) or lower side of the frame (for volleys). This is fine and dandy, but the plastic clip will rub around your main strings and racket frame. I can only imagine over time, the friction will wear out the racket's paint job, and also has the potential to wear out and cut into the string's mains.
The PermaWrist doesn't use a plastic clip to connect to the racket. It has an ingeniously simple design that has a loop which you loop through either one side (for volleys) or both sides (for forehand/backhand) of your racket frame where it meets the handle. This solves the problem of having the plastic clip wearing out your racket's paint or main strings that exists with the Leverage Band.
The tie in points to the racket are different between the Leverage Band (on the bottom grommets' frame area) and the PermaWrist (just above the top of the handle). I personally think the PermaWrist's tie in point is a better location from the stand point that it won't alter the balance of the racket as much because it's closer to the handle. The Leverage Band's tie in point, being at a higher point on the racket, for sure will affect the balance of the racket more, deviating further from the true feel of the racket.
On the end that clips onto the arm band, the Leverage Band has a metal loop to clip on, compared to the soft loop of the PermaWrist's arm band. I think I'd prefer the metal loop but I'm not sure if it really makes that much difference, as long as the soft loop of the PermaWrist is durable enough to last as long as the metal loop.
Obviously the Leverage Band will use a longer bungee cord than the PermaWrist's bundgee cord due to the design. This means the triangle formed by your forearm, the racket and the bungee cord is smaller on the PermaWrist than the triangle on the Leverage Band. The question is which is better to have here? The smaller triangle or the bigger triangle? I'm inclined to go with the smaller triangle because the shorter cord keeps the triangle more compact and out of the way. But more importantly, it should have less "give" and therefore will "lock" your wrist in better than the bigger triangle which should have more "give".
Hope these personal observations are helpful in evaluating the differences between these 2 very similar devices. In almost all aspects as spelled out above, I think the PermaWrist wins out in almost all the points considered.