There's a fair bit of space left on the PME's Versaplate so I've mounted a Losmandy 13.5" DUP plate and two DVAs on the DUP. The forward DVA has two stainless steel Farpoint counterweights (set of 3 purchased from Bintel - 1 lb each) and the other a single weight. This gives me some wiggle room and it's easy to add more if needed.