I am currently playing a 913f.d 15' with a 43" Fujikura Rombax Pro-95 X-Flex tipped 1/2". I was fit for this club with a 42.5 inch shaft but we ordered it the standard 43". I would like to trim it down to 42.5" as I like that length much better. Can I just trim off a 1/2" from the butt end? I would like to keep the swing weight around D-4 so I am thinking I will need to adjust the weight in the head as well. I was about to order a 18' model with the same set up and was thinking maybe I would be better served by trying the shaft from that model first before I cut down the shaft.