thats a beautiful bow robustus, I've seen these bows before, the bamboo dragons, did'nt realize they where made by you!!  I've wanted to make a bow with boo back and belly for ages , but haven't worked my self up to trying yet, haven't figured out how to work out the thickness of bamboo etc. etc.  I reckon  these  bows must be some of the fastest wooden bows anywhere, what do you think???