Semi-spinner

[Cork55]

Greetings,

I have seen this term used in several bowling forums and am curious about this style. What exactly is it and how would it be different from a semi-roller?

-Cork55

[bowl1820]

There are 3 basic ball roll types: Full Roller, Semi Roller(aka 3/4 Roller) and the Spinner. The semi spinner would be between the Semi Roller(aka 3/4 Roller) and the Spinner.

It's not much different than a semi-roller, the semi spinner just has a little smaller track circumference than the semi-roller.

The semi-roller track circumference is about 25". the semi-spinner would be just a little smaller than that, but not as small as the spinner track.