?? A&H and Zipper

[RIng]

I am interested in a comparison of the handle of Zippers Nitro ,SXT with the 3 A&H risers . The ST , JK , and RC  . Thank You Rick

[Bjorn]

Shot pretty much all of those, owned the Nitro, and own the ST and JK. The Zippers are heavier and blockier-the A&H smaller and less angular. Another personal preference thing-get a hold of each and make up your own mind. Pretty sure both bowyers will custom fit a riser to your specs if you take the time to describe what you want.
In the case of those two bowyers you need to consider the whole bow and not just the riser, they are completely different animals.

[LimBender]

I own an SXT, Nitro and Zipstick.

The Nitro is narrower in the grip area than the SXT, and the Zipstick seems to be between the two in width.  Most of the Zipper grips would probably be called medium, not overly deep, and are very natural feeling in hand with minor finger grooving on the back.  

The grip on the Zipstick is second to none in my hands!  I think that the main difference is the width and small cut on the right back side of the shelf, which lets my thumb ride higher.  

Also, the Nitro riser is a good bit sleeker and lighter than the SXT, but some people like more riser weight.
 
Don't own an A&H to compare.