Been trying to get info on how the personal pace works but information is not very forthcoming so turned the back on them. The disc drive system on the Snapper is probably similar to the Ariens
Did you contact Snapper USA? I find the Australian OPE distributors and dealers don't give out much info.
I've never used a Toro mower, but I've spent many hours using their tracked and wheeled mini skid steers (Dingo) and their Kawasaki powered stump grinder. They are well built machines and last well when used for rental/hire.