I mowed a property this year that has a couple of sloped areas that are so steep I have trouble standing on them. It is too large for a trimmer and I did it this year with a residential 21" lawnboy. I could stand at the top of the slope and mow 90% of the area with one hand while keeping my balance with the other. The 21" is faster than a trimmer, but a real heavy mower will not work, unless I workout a lot. Also my residental mower is a 91 model and is dang near wore out, I used it a lot this year. Anyway, she just renewed for next year. My question is, I am buying a better WB this winter. I dont think a large WB will work. I saw a pro Lawn Boy but it seems much heavier than my residental. any suggestions?