Peak or RMS

[Murphyv310]

I agree that many trainers are rigid on the classwork and often get stroppy if one class member starts asking irrelevant questions or tries to be smart.
They to have guidelines to follow and if they get sidetracked then it means things can get rushed.
Tracy's comment about the driving test sums it up in a nutshell.
I'd just do the course work then after passing do your own research.