I just purchased a Hustler Super Z 25hp 66" ZTR and I'm planning on using it to mow my pond dam. It's roughly a 25% grade and at times may be a bit more. I had been using my New Holland boomer tractor with 72" MMM and had no problems but have since sold the mower. What is the steepest slope you've mowed using your riding ZTR? After researching, it's clear that mid-mounts are better than front-runners on slopes. Any pictures?