I am looking at a 40" or 48" tow behind for my tractor. The 40" has 28 "plugs" and the 48" has 48 "plugs". Is this set up going to be too big and cumbersome for some smaller lots, will there be a lot of areas I can't get into? Most of my accounts now are less than 1/2 acre. Would a self propelled one be better? Thanks for any advice? Joel B.