I've only had boat for a year. Always been slow to get on plane since I've had it. Had solas A3 equivalent props on there and now I have volvo stainless C3's on there. Not much difference between the two on acceleration. Always slow from 2400 rpm until turbo kicks in. Just totally rebuilt racor turbine 500, not just filter change. Think it was 10 or 20 micron element. Seems to be developing a hard cold starting issue too. Losing fuel prime to injection pump gradually when engine is off. No sign of any leaks. Not sure if I have a bad lift pump or something else going on. Not sure if these issues are even related. Once up on plane boat cruises just fine and can hit WOT of 3900 without issue. Love the boat, just don't want to kill the motor with the laboring acceleration.