I'm finally in the market for rotary mower for my MF1635 and I was wondering about any suggestions that folks have on the size that works for them. My main question is will a 6' mower work just fine or will it bog down at times. I will mainly be mowing grasses..only on occasion will I be backing into some buckthorn and honeysuckle! I had been looking for a 5' originally but this won't really reach out past the tires? Any thoughts would be great! Thanks!