Most higher handicappers will use whatever balls they have in their bag
Topflites etc.
If you are looking for something specificly better than the pts solo, have you tried the titleist nxt? This is what I use, much prefer these.
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Titleist 983k - fujikura stiff shaft
Taylor Made R7 Steel 15* - Re*ax stiff shaft
Mizuno MP32s - S300
Mizuno MP T Raw Haze 51*, 56*, 60*- S300
Scotty Cameron Red X - 330g