My local range sells balls in increments of 35. For me, 35 is too few and 70 is way too many for me. It seems that by the time I get to the 70th ball I'm just whooped.
It's probably worth noting, that my typical range session goes something like this:
5 really soft slow sand wedges to loosen up
10 pitching wedges
10 7 irons
15 5 irons
5 4 irons
5 hybrids
5 3 wds
10 drivers
5 pitching wedges


















