Rega P-25 Tweeks .........What works for you ???

Finally getting adjusted back into vinyl after years of being dormant. I've noticed upgrades that are available for stock items like platters,counterweights,discs,ect. Obviously these are of higher quality and do make a sonic difference. Which upgrades have you implemented into your Rega table? And what noticeable change have you gotten after the conversion? What has worked for you ?