Titleist, I am looking at ordering a 910D3 with the RIP 70 Stiff shaft. When ordering through my retailer I am looking to get it tip trimmed .5" more than normal. How much stiffer will that make the shaft play. Obviously I am unable to hit the shaft prior to ordering it but I want something comparable to the ahina x-flex. How will this compare on a stiffness scale? Thanks, Mike