I have to agree with Al. There used to be a bowyer here in Montana that built the bow to your draw length, once you got past that length the pounds really started to add up. His bows would usually build at the rate of 2-3# per inch up to the desired draw, they would then jump to 5-6# per inch after that. He did that by increasing of decreasing the length of the fadeouts. I can' say every custom bowyer does that but there are a few.
Bob