Quoted from DefaultGen:Left 0.3 too high... Rear 1.1 too low. Left 0.1 too high... Rear 0.4 too low. Left and right OK
This what the pinguy iPhone app does. You just tell it what pitch you want. Plus it lets you learn about a machine so you can then do it with the glass on the next time. Very nice when under the machine to hear it telling you what the issue is.