Right, the results are in.
It's very weird, but here we go...
After 250 arrows, my bow weighs 35# at 28". It flings arrows at a pretty quick rate too. Without a chrono, it looks/feels/penetrates about the same as the 35# PSE Razorback recurve I've got. It has about an inch and a bit of string follow, but that doesn't feel too bad. It does stack quite a bit, with it reaching about 41# at 29".
The crack we mentioned has yet to open up at all. Not even a creak to speak of. I fixed the tiller so it's now very balanced. Obviously I had to reduce the poundage, but I'll take it. Tip to tip it's pretty short at 60". Nock to nock is ~58". I tillered it up to 30" though, to make sure that crack doesn't appear again. Overall I'm not too disappointed.
After all, it is only my second bow I've ever made. I've learned my lesson, and will improve with the next one.
For others who may follow: Garapa is clearly a decent bow wood.
Thanks all for the advice. I truly appreciate it.
Matt.