Jetting with a test wheel?

[Johan]

Do any one know if it is an accurate method to do the jetting by plugreading after running the engine with a test wheel?
All other recommendations about jetting welcome!
// Johan

[us1]

I have found that it run leaner on the course than on the test wheel.

[Instigator]

I posted on this before thinking I had found a short cut.
I was told other wise!