Question for LP-12 owners

I have read a lot of threads regarding upgrades for the LP-12. For those of you that have upgraded your LP-12 with motors, arms, bases etc., the descriptions of the differences had to do with quietness, space, detail retrieval etc. But what about PRAT? That is the sole reason I bought my LP-12, but I never see anything about this when reading these descriptions of the differences. If I were to upgrade my LP12, that is what I would be worried about most. Have any of these changes affected PRAT significantly?

Mike