Larry
"Uncle Larry"
Larry, I have a thick birch snare, 14x6, that was made by a good friend of mine. Due to the thicker shell it has a limited range in the lower registers. It is a great snare when I need a loud, cutting rock snare but I won't do a lower Blues tuning like some of my other drums will.
Really. I have a thick maple snare, a full one inch thick, 10 plies. It does low so well I can't believe it. I'd love to take your drum and give it a try. I have a hard time believing that a round and true drum won't do something that a different but same sized drum will. So color me skeptical. I betcha I could get a great low tone out of your birch drum and if I can't I'd publicly admit being wrong, and offer formal apologies.