Eric, I have to agree with Desert Fox on this one. I'm sure there are folks out there that have successfully made boo backed hickory(and/or pecan) but in my opinion hickory(or pecan) is not a good candidate for a boo backing. It is relatively weak in compression thus making it not suitable for belly wood and especially for a very strong backing wood(grass)like bamboo.IMO If you have a pecan stave with a good, solid back ring there is no reason to back it with anything.
If you want to back a pecan belly use hard maple, elm or ash. Even a hickory backed pecan will work well.
I have seen boo backed hickory bow blanks for sale and the only reason I see for such a blank is that hickory boards are readily available and relativly cheap to purchase. I ofter wonder how many folks have been disappointed and discouraged by boo backed hickory glue up they have attempted to make. In my mind it is a disservice to the beginner to sell them a boo backed hickory blank. You would be better off with a pecan or hickory board as an unbacked self bow or by adding a simple backing of paper, silk or linen.