2000 LSS? Must be a new factory finish for Motiv. 360, 500 then 1000? Interesting.
That can't be the process to get to 2000 LSS. 360, 500, 1000...
It could be. Motiv's LSS 3000 on the Ghost is 500/1000/2000 on a spinner. http://www.motivbowling.com/resources/factory-finish-guide.html
I feel like saying only using grits below the stated finish surface defies science, unless they use pads so worn they aren't the true grit anymore.
Not really. You have two surfaces at different grit levels working against each other. Why should one always win out over the other? Pads are known to wear down fairly quickly. Therefore, it would be foolish to think that a bowling ball would magically get to the grit level of a pad.
In fact, studies have shown that using a spinner results in a higher grit than the pad being used. You only achieve a true grit level on the bowling ball's surface by doing it by hand, and even then, not overdoing it.
Generally speaking, unless one surface maintains its grit level for a long period of time, the two surfaces are going to work against each other and blend out.