I word maxed out my above response so here are a few other things to think about:
I use to have my wife help me load the toad but it seemed that all she could do was shake or nod here head then we’d have words so I finally figured out the following.
With the dolly hooked to the RV and set to load get your toad lined up where you think it will be in the center of the ramps. Now pull up just touching the ramp, get out and check to see if it's centered. If not, back up, try to compensate for the differences, pull up to the ramp again, get out and check it. When you’ve achieved center find a vertical alignment point on your toad (steering wheel, wiper spot) with a point on the dolly and use these in the future to achieve center. In the future you may still be out of alignment the 1st time but eventually you’ll usually hit it on the first try. Then load the toad as I suggested in my previous response. Loading & unloading only takes a very few minutes more than 4 down so its not a real reason to go 4 down.
It’s is a little nerve racking if the ramps and tires are wet as the tires tend to slip on the ramps and you’ll need a little running start to get up the ramp. If you not real careful you can run right over the dolly stop and get caught. This happened to me once but I was at home, had two good jacks and cribbing to get the toad back up to stop level and pulled it back onto the dolly.
I’ll turn 76 the 4th of June and can still move the dolly around on level ground but I got a “trailer dolly” from Harbor Freight and it makes it easy to move the dolly if the ground is rough or I have to push it up hill. I’m lucky that I have a bay large enough to hold it.
I keep my toads for many years, like my Vibe to well (it can't be pulled 4 down) and can't afford to change to a 4 down toad so I'm happy with the dolly. If you normally keep an exclusive toad for several years, and can afford to buy a toad that can be pulled 4 down I'd suggest you go 4 down. The older I get the harder it gets to get down & up from knees.
As mentioned above the Demco KarKaddy SS is a very find dolly. It’s a little more expensive but it’s well worth the price. It is fully galvanized so you’ll never have to worry about rust. It has rack & pinion steering just (link a car) so it follow you around very nicely. Its ramps fold up and its tongue folds back to reduce storage space almost 50%. It has surge brakes so you can use it with any vehicle as you don’t need a brake controller.
If you have any questions please feel free to contact me through rv.net.
Dave Bates
