Trying to decide between either a Cub Cadet Tank M series or regular Tank, and a Scag zero turn. I have about 5 acres to cut with about 1 acre that is on a slope. I've narrowed it down to these three mowers due to having a Cub Cadet Zero Turn Tractor to trade in (Just too slow!). What advice do you have for me? I'm looking at either the 60 or 72 inch Cub or a 61 or 72 inch Scag. I'm open to suggestions of other brands but since I have a trade it will be easier for me to work with the same dealer. Thanks in advance for all opinions and help!!!