There should be a chart in the box your shoes came in that displays what sole/heel offers what amount of slide.
For those that bowl at different houses, like in a travel league, the approaches are different. Some wood, some synthetic. Some are slippery, some are tacky.
In the summer time, I have to change my slide sole because the humidity causes the approaches to be a little more tacky than normal.
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The bowler formerly known as BrunsRod.
Solid 7 Pin?? 299 Game??!! WTF