I know what you're saying Looper. Got a weak wrist myself and have to grip my bows similar to yours. For your next bow you might want to consider placing your arrow rest 1 1/2" above center for a medium grip. That makes the upper limb just 1" longer.

Note in your full drawn picture how lowering your grip affects the area just outside the handle fade. This can effect long term tiller health. ART

I haven't cut in a rest, was going to glue on a leather self.  Can I just grip this bow a little higher on the grip?

Sure, that would work fine looper. That bulbous style handle doesn't lend its self to a cut-in rest anyhow. ART

Do you think this bow will hold up at a 31" draw?  It's 64" nock to nock.

I've been working on my form and now I'm pulling to 31".  I'm a little concerned that 31" might be too much for this bow.

In my opinion, 29" is as far as I'd go with a 64" ntn length.  Plus, in looking at the string angle at the nocks in your full draw picture above, you seem to be very close to 90 degrees (if not just a touch more on the upper limb.)  If it doesn't already, it will probably stack at anything more than what you're pulling now.  I'd say you've got a nice looking bow right now, and if it's shooting great, I'd stay put.  Again, just my $.02.  I'm sure some other folks can shed some clearer light on the subject.

That what I was thinking.  I think I'll try a 68" one next.