DG S300 Ballooning and loss of distance

assuming it was Titleist themselves that did the fitting so made up the new clubs. so no reason to think they would get anything wrong as would use uncut shafts put a 4i shaft in 3i etc. & cut to normal length.

you went from AP1's though with a reg shaft which is giving you your distance comparison to the new clubs, 'hard stepped' s300's, so that's kind of gone up to be between stiff & xstiff on a 'head' that does not quite give the help you were getting from the AP1's.

presumably it's a little ways colder now, than when you got your 'normal' distances with the AP1's regs.

so assuming there's nothing wrong with the shafts or the make up of the new AP2's, could be down to the fact that you are having to try to work the new clubs a deal harder than you've been used to so possible throwing the club head at impact which could be resulting in you adding loft through the strike, by the club head either arriving a little ways before the hands or pretty much at the exact same time - both of which would add loft through impact.

would be worthwhile if it's possible to book some time on GC2 HMT as you could then check the dynamic loft & AoA through impact & also see whether the strike has moved a little ways vertically up the face. both of which would have a big influence on launch angle & spin rate.