The only things I can add to this is @ very slow speeds, "paddling" around gas pumps, in and out of garage, or sugar sand or gravel, a mismatched pavement seam or unseen stone, or whatever, puts a large, side moment on the scoot, and if unexpected takes a bit of getting used to as well. Course, I'm an anemic old fart with poor circulation in my legs also.
I had been gradually letting the pressure down in the tire, and was @ 35 PSI to help aleviate that phenomona. Every pound made a significant improvement. During the "RIDE" @ Daytona, there were a couple "seasond" Boss riders with 18" wheels and car tires. The one I was directly behind most of the time appeared to have very little "edging" effect.
On my scoot, @ 35 PSI, you can stick a boot toe under the R/H side of my tire when on the kickstand. This fellows Boss wasn't nearly so bad, and he said he was running 30 PSI. I'll try that when I roll the Dunlap back under my scoot.