Not sure I would call the ball Medium to heavy oil with OOB finish.
The ball was advertised as that though, but the cover is more than easily altered to give the desired reaction.
I've gotta get some more time in with mine as it's just not up to the same standards in terms of consistency and roll as my Sledge or Hi-Rev.
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BR.com.....going down the toilet one nugget at a time!!
g thing is back....with a vengeance!!