Tiller, Take the finest 60rpi yew stave ya got, and let the ocean leach out every resin that makes that fine wood what it is, and I bet you will regret this big time..
I have seen wood fresh cut, dried, and everything in between,floating at sea, and have inspected them on the beach, pulled them up from the sea floor to inspect, and I have yet to see any reason to think this method will make it into a better bow.
If this was such a good method every coastal civilization using wood bows would have figured this out centuries ago, especially if there was some even if just a minute advantage..There would have been some documentation of a cast advantage if it actually worked.
We know what was done historically, heat tempering, and bending, laminating, gluing, steam and boiling...By many cultures living near the sea..Not one was tossing their fine bow wood into the sea to make into a better bow..They had already figured it out..
Rich-frequent flier