Edge grain vs. flat grain

[1flyfish]

I was wondering what grain has better performance, edge or flat grain and what would make a more durable limb,if it really matters at all, this is for lam bows not self bows. Thanks for any input. Keep em flyin straight.

[Pat B]

I always preferred edge or bias grain wood for backed bows. I think those grain configurations have better resistance and recovery. Pat

[Orion]

I've always felt that flat grain was a little springier, edge grain a little stronger.  Usually built my bows with both, flat on the back and sometimes belly, edge for the internal lams.  Don't think it makes a big difference though under glass.

[Jeff Strubberg]

Under glass, the wood is mostly just a spacer anyway.  I don't think you could measure the difference between edge grain and flat grain.

[Pat B]

I'm referring to all wood lam bows. With a glass bow I believe the wood is primarily used as a gluing surface and for decoration with clear glass. I don't believe it makes a difference with glass bows.
   My Treadway bow has flat grained elm under the back glass(as a decorative camo) and edge grain elm under the belly glass(Mike's suggestion).