....IAM/(AIM?) courses tend to be a bit 'luck of the draw' - You might easily get an instructor who is rigid and anti anything above 70 mph.
I've done a CarLimits course - One-to-one on an airfield exploring the absolute limits - 1 spin, 1 set of tyres, 11 mpg. And a full and exciting day with Drivetrain on public roads - Big John has trained Police 'blue lighters' and is highest grade qualified - He doesn't encourage you to go slow though!!
I want to do DDP next (as Steve refers to) - Big John sometimes trains there and I can arrange him again. VW Racing have said they're going to give me some education later this month.
I hope I haven't made it sound all about high speed - It's about focus and awareness and knowing your car - One reason why I never listen to music nor the radio while driving, nor a hands-free phone! I don't care two fux if anyone finds that boring.