I agree with what they all said. The "modern" longbow is a far cry from the Hill style bow that we were shooting in the seventies and before.....yet those bows killed very effectively. It's much more about having an arrow that flies perfectly, a sharp broadhead, and shooting accurately. I am one that subscribes to Ashby's recommendations regarding arrow and bhd configurations as well. The bows are equally effective at the ranges we should be shooting.
I do believe that the configuration of the bow, particularly grip size, shape, "high or low wrist", is an extremely important consideration for most of us. One guy is a dyed in the wool recurve lover, and another the same way about longbows.....give them the grip or feel they love on the other type of bow, and they'll likely be just as effective with that one. The shape of the limb doesn't help you hit your spot, but just try to be consistent with a grip that's not comfortable or doesn't fit "your" style of shooting(form) -it's very hard to do!