Thanks guys...Ive talked to a few experienced Rega guys who tell me that I wont actually need the heavy weight. The RB-250 can handle 11g. The Benz (8.8g) with mounting hardware will put the weight at roughly 9.3g, thus Im told all will be good with that set up from those who have experience. We'll see when it arrives. I do have the 2 and 4mm spacers avail that will be needed, (likely the 4mm size) and Rega extended nut in case.