I've always been a fan of the Bear latch system.
But, lately after buying several risers and some old, new, and after-market limbs, I'm not as sure about them. Yes, it is cool, slick, and easy to work (usually).
However, I've had some limbs that rattle, some that are too tight, and I put Supreme limbs in a Green Stripe riser and ended up with a small surface scratche on the face of each limb where the top of the latch interfaces with the limb.
I've also talked to two after-market limb makers who want the particular riser in hand as they finish the limbs. They want to make sure the fit is correct and even that the tiller is right.
So, while I continue to like the Bear system I always wonder if the limb/riser match are perfect. The bolt system of limbs and riser may be a more perfect match?