The 2Fast may have some more back end with both shiny like that.
Why shine the Jacked? They come out of the box dull. Similar layout, similar surface prep, they should be similar. Put the Jacked at 1000 Abralon no polish, and it will roll earlier and be smoother off the spot. BTW, I think the 2Fast is much more ball than advertised. Great ball, hits awesome.
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