I'm new, got a few questions... so please bear with me. I did some searching, and really couldn't find concrete answers.
I'm using this for my classification:http://www.nasaproracing.com/rules/nasa ... lasses.pdf
How does upclassing work? NXE upclassed equals NXD or NXE upclassed equals NXF
Does this classification coincide with this form:http://www.nasaproracing.com/rules/nasa ... n_form.pdf
At the top of the form, it says (NXR-NXH)... so does that mean NXE, NXD and so on don't use this form?
The first pdf with all the classifications has one less tire option than on the form... so is the classification out of date?
If there are more differences between the form and the classification pdf, should I refer to the form first?