Spare ball:I have come to the conclusion.......

[Stormed1]

Part of this summers plans of improvement is using my spare ball for all spares other than those which require hook (ie.2-4-8-10). Although i can pick up the 10 pin if i wanted with my hookingest ball my margin for error is much greater with plastic.

[americantrotter]

I dont use a spare ball. But I am joining the Have a Ball league this summer so I'll pick up a White Dot or Tzone. It'll be good to practice with.

I can't throw straight very well with a thumb in. Due to playing thumb out exclusively for a year now. i can still roll it straight at spares when needed.

Seems like a plastic or spare ball is really needed depending on a bowler's style. I'll see if i can work it into my game, because if I can do better I'd like to.

[billf]

Since I have gone to plastic exclusively for my spare, my conversion percentage has gone way up. It takes lane conditions right out of the equation and increases the margin of error from 11" to 22"