If you bring your head all the way down, is the lube tank and presumedly gas tank too, still too high. To be honest that is fairly high on my woodmizer, and when you run out of gas in a cut, so that you can't drop the head, it is real high. lol For that reason a step ladder stays with it, whether I need it or not. My head will not try to roll away, I suspect it will be easy to rig something to keep yours from rolling, as that could cause a problem.
I especially like the part where it cut nice right out of the gate. After reading for a couple of months, I was surprised how nice mine cut, I guess I was probably expecting the worst.