I'm shopping for a new self propelled mower for trimming. The choices are few in my area. So far what I have found that fits the bill is a high wheel Toro at Lowes. I only have three yard that require trimming with the push/propelled mower. Still the amount of plastic scares me on this mower. I looked at a Gravely and if felt extremely heavy. This turned me off because I have to take the mower down a set of stairs at one yard I mow. Any advice?