I am always careful where I park my bike on the side stand as I really like to have a good lean. If it sits more vertical it is too easy for it to fall over. So, I usually park on a perfectly flat surface or one that slopes down. Especially if it is windy!!!
The point about the pre-load is a good thought. I have mine at about 17 clicks.
My old Valk really, really leaned and that was great by me. Took a little effort if on a slope but it would never lift off that side stand without help!