I've got a Buff Daddy, it came with the original 125mm backing plate and pads but I picked up a 75mm plate and pads at the NEC Classic show a year or so back. I use it with the Meguiar's compound. It works very well, but like Steve I steer clear of trying to get into the really tight curves.

Tim H.
1986 4/4 VVTi Sport, 2002 LR Defender, 2022 Mini Cooper SE