Don't go in cold if you can avoid it. Play a few rounds in the days before getting fit. Hit a small bucket before getting fit. You really want to be fitted for the closest thing to "your" swing and not just the swing you have randomly during the fitting, if that makes sense.Papelbon said:
You're in the Boston area, right? Go to Joe & Leigh's in South Easton and get fitted. They will credit the cost of your fitting towards the set you buy. All it will cost you is an hour of your time. They will fit you on length, lie, shaft flex, grip size, everything. Talk to him about your game and try out four or five different models to start. They will set you up on a Tracman and start eliminating clubs one at a time, based on your feel and the stats. Try not to have any brand biases when you walk in and just trust him and the numbers. Profit.
Also, don't worry about game improvement clubs vs any other clubs. In drivers it means 460 head, higher spin and usually higher launch. High handicappers tend to struggle with distance. All of those things are meant to increase distance at lower swing speeds. Irons are about lowering the CG and making, upping the bounce and making a bigger cavity back face. This prevents digging, increases launch angle and gives a bigger surface for mishits. If you stroke your irons at all then you're fine with basically any clubhead style.