I'm not a boyer, but I have looked into giving it a try. Bingham has a plans for a 48" TD youth recurve. I think they only sell limb kits for it up to around 30#, but you could get the blueprints from them and look at their draw weight charts to try to estimate your stack thickness for 40-45#. Possibly an option that would require less trial and error. As for the long vs. short argument, I think I'll remain neutral.