My 2 Pfennig:
Next buy: two short wedges, lvl38 ATVs or lvl41 Pings. Chips, pitches and flops will improve drastically. Try their punch shots, too - they act like two extra wedges.
Any custom ball will lower the meter speed, even the cheapest at 1 cr per nine hole game (SDs are 6 cr/game).
Looking at putters, you might want to wait till lvl 55 (Rossa) and decide for a putter >500 crs, or wait longer.
G20 irons are at 88.000 XPs, they are worth the wait (first clubs with high trajectory).
Having bought irons eventually, you might drop the 3H for a third wedge, fitting below the new PW.