I really don' t think weighting the shafts is necessary.
Dick, if you drew 32-33" , you' d change your mind about THAT in a hurry.
My longbow punishes me if I shoot an unweighted carbon (my GoldTips weight out at 450 grains without adding weight and my longbow is 54#@32" ) and the only recurve I' ve ever broken in my life was one I shot unweighted carbons out of. Took less than a year of shooting to break the glass on the back and I bought it new.