again, those people were pretty shitty… but you have to remember how much worse they were when they started. a lot of the people at my class had never ridden before or had like 20 years ago. and if they wanted to ride they would ride.
Bad rider or good - the MSP can’t hurt. Learning (or even re-learning) the basics will always make you better. If nothing else it will probably help you lose some bad habits.
Rumor has it the ERC is a bit of a waste - I’ll +1 Jeff’s comment about the track teaching you more at the point.