I used to have a p25 with rb 600. It's a big upgrade. No downside. Plus it's easy. Let me know if you have any more specific questions....
Rega P 25 and Express Machining Counterweight
I am curious if any one has tried the Express Machining off-set counterweight. I have added the incognito wire harness and am condidering the off set counterweight as a tweek. Any one had a positive or negative experience with this.