I have one of the quality measles balls. I don't use it even in practice because it rolls long. Three rails, I am going to run past shape with the measles ball compared to the red circle that is used in competition in my favorite hall. My perception is that it rolls sixteen-eighteen inches long.
Long ago I read there was an extra clearcoating step making a measles ball. I don't know if it is true or not, I think that was supposed to explain the marking when hitting with phenolic tips. It seems like the curing process would be a bit different as well as the extra coat. I assume the ball is originally slightly smaller and lighter than a standard ball before this final coat.
Then again, all of this may be hokum. It has been a long time since I read this about the clearcoat and I don't remember the source. Seemed valid at the time.
Much like Bill, I don't care why the measles ball rolls long, I care that I have to make adjustments that are then wrong when I move to the red circle ball. Might be the weight, might be the composition, might be the cure, might be something I don't even consider. It seems to play heavy hitting other balls, then rolls long which I don't know if indicates heavy or light after rebounding off cushions.
All that really matters to me is the measles ball I own is a poor ball to practice with if I am then going to compete with a different ball.
Hu
It does finish it's roll long, I noticed that right off, but now I'm comfortable with it because if that's what's in play, I want to understand ''how it rolls''. It does have quite a different feel than any non bar table ball I've used. On some power follow shots, I'm able to do things, I was only able to do with a heavy oversized bar ball, that's quite a change.