when are you going to give it a rest everything sits lower than waist high. When have you heard of anyone flipping a z on a hill? Its about impossible. You slide, not flip. Most z's are 80-20. diesels have a better transfer than gas. Your hustler I bet is 70-30 or worse due to how heavy the deck is. Scag I imagine is similar. The better the transfer the better it will do on hills.