I used makore once, but I almost can't remember anything about it. I think it was early on in my bowmaking, I backed it with bamboo, and then slowly killed it during tillering until it was finally a 20 lb kids bow 10" shorter than I started with. At least that was standard procedure back then.
The numbers on makore's properties look good, though the lower end of it's S.G. is pretty light. The high end is about .68-.70, I think. It's pretty light for me to have tried bamboo backing.
If the board looks good and you have the tools, buy it, cut some trim pieces and do some bending tests. If it doesn't look, like it'll hold back, you can always use it with a backing.
Most of what I see sold is highly figured stuff, which often means wiggles in the grain. It is also diffuse porous, so chasing a ring may be a trick. Good luck.
