Real-life experience blocks to aid 6-point leveling system

I'm guilty too of lifting wheels off the ground with my 4 point leveling system. I primarily plead ignorance of the system.

6 points may be OK but I would think the more contact points you have with ground (+4 w/ tires) the more stable you will be and the less chance of tweaking the frame.

I also like the theory of using as little stroke as you can (thru leveling blocks or cribbing) keeps the legs telescoped as much as possible and intrinsically more stable.