As far as the kickstand - I would make sure the bolt is tight and the spring is in the right location. Maybe replace it,
if it appears weak and lets the stand move easy. Just checked mine and it is fairly stiff to move with my hand.
I don't believe mine would move going over bumps of any kind.
Have you checked the spark plugs?
How old is the battery? If it is over a few years old, I might replace it just for peace of mind.
There are many posts about how what appears to be a good battery caused problems - new battery fixed the problems - just saying..........
Do you know for sure there is no crud in the fuel pump and or gas tank. There is a screen in the fuel pump.
When I had problems and took mine apart my screen had some junk on it. Not real bad, but still had some.
How about running a can of Seafoam through it?
You can't just look in the fuel tank it has to be emptied and the fuel pump removed to be able to look inside. The injectors can also have some crud around
them and might be worth taking a look at them also.
One more thought - If you really feel the need to wind it up to the rev limit - Get a TRE - Problem solved