I have been noticing thT lot of new equipment has a lower underlying surface grit and then some sort of polish applied.
My guy here in the Milwaukee area (Bill Monce) who has considerable ball experience is doing just that.
1000 grit and then polish, usually no higher than 2000 and polish
It really seems to help with the over/under
Now last weekend, we were using the Columbia VOW withits polished surface and it was a bit to skid flippy, 2000 by hand and it tamed it right down.