Carnac sayyyssssssssss..........!
37, 38, 39!!!! Hey, that's the number I own!
I bowled my best when I had 4!! Including spare.
TO be really serious I think 6 and a spare is all one needs.
Heavy oil flip
Heavy oil arc
Medium oil flip
Medium oil arc
Light oil arc
Light oil flip
Spare, plastic, rubber, or urethane.
REgards,
Luckylefty
PS now leave me alone, I have to get to EBAY to bid on a ball!