Thanks! I definitely understand about needing to be lower in the front. I was just thinking of checking side to side level.You need the front a little lower than the back, so that it cuts the grass once rather than bit by bit as you drive over it. You can't measure front to back height if you measure at the sides. If you're just checking for level, then yeah arguably you can do it at the sides, it should tell you the same thing.
I kinda reckon you could also measure to the mower body, I suspect the height of the spindles is the same both sides. Maybe measure the blades once, and check the mower body, if it lines up just measure mower body next time.
To be fair, I've never checked mine and it mows OK. It was getting patchy a few weeks back, and I took it off and found the blades were dead blunt - as in the centre blade was rounded over like the side of a pencil. Apparently I've been scalping a bit when I mow the road side.
I'm getting torqued off at this dealer. Not sure why it takes 2 weeks to have an in-stock sub-compact tractor ready....