Hi Blade Butcher, you must of been posting as I was typing. Well we're all on the same page now. I didn't comment on the rear roller; it is self explanatory when you mentioned the hilly terrain you're mowing.
Please do not PM me asking for support. Please post your questions in the appropriate forums, as the replies it may receive may help all members, not just the individual member. Kindest Regards, Darryl