First- if you are not comfortable with “ride up, mounted back off” loading, don’t do it. Both require the commitment that it’s no big deal. Deciding that you don’t want to or can’t do it in the middle can get ugly.I have 4 ramps (12" each, 8ft long), so I could make a ramp that's the entire width of the truck. I really don't want to, the ramps are big and I really think 3 is plenty to ride up, go up the center with a full 12" ramp on either side for my feet. But I really feel that riding up would be better control than trying to push it up or control the bike off to the side walking next to it. IDK why that's the recommended method (I've never loaded anything like that before) but it does seem that most say "don't ride up".
Are you talking about truck loading in general or walking next to the bike when unloading? Unloading I have a lot less concern, just roll back until the front wheel hits the ramp, then let it come down. Much more concerned about loading, that's where I've seen things go sideways before and where I really struggled with the XR. When I got it home, I just put the ramps out, sat on the bike, and let it roll down them, didn't feel sketchy at all because gravity is working in your favor.
I won't be bringing enough muscle, it'll be solo load/unload. Maybe I can get some help at the track, but I'm not counting on it.
One thing I did notice, when people do the "walk up" method with 2 ramps, they put the 2nd ramp further away from the bike. That's a good idea, it would have been much easier to control if I was further away/had more leverage. But, overall, not a huge fan of walking up those ramps, it's kind of sketch even without a motorcycle, IMHO.
Second- while I try to impart some wisdom to the initial questions as they are asked, a trailer will be a better way to go.
An enclosed trailer can easily be set up with your “track day” in mind. It can hold all your track gear when you are not using it. It can store your E-Z Up shade canopy along with your tools, cooler and anything else you find handy to have at the track.
Good luck.
OM