Maybe I am beating a dead horse--but you need the skid sprayer--because you will use it to refill your ride-on, (as a nurse tank). (With a few modifications for faster fill-ups.) Ask Gregson Clark about such modifications. You will also use it for special jobs--for confined areas where the ride-on cannot reach. Also, fungicide, insecticide, nutsedge, Drive on certain days. Depends on your individual situation. I think most ride-on operators also carry a small spreader for gated areas, steep areas, pool enclosures, curb strips. This could be a small plastic homeowner model--or maybe a hand crank organ-grinder type. Most of us have a couple one-gal hand sprayers and a backpack, too. Sometimes you can even build a holster or bracket and hang it on your ride-on. (not the backpack).