Br – I did the Star Rider (bronze/silver/gold) thing back in the mid eighties too. To be honest, it's not a patch on the IAM.
I do 28k miles each year on the bike. Mainly commuting on fast A-roads and through 2x cities (Nottingham and Derby). I had a minor epiphany a couple of years ago when I arrived at the scene of a nasty bike accident before the services got there. Not nice.
I decided to invest in further training with the IAM. It changed my riding style significantly – some of the overtakes/filtering I was doing previously were just too risky. I still filter/overtake but am much better equipped to do so.
I'm now a smoother and, where circumstances allow, a quicker rider than I was previously.
Sign up; it's not expensive, you could learn something that may save your life, you meet some decent folk (and some weirdy beardies :wink: ) and they'll show you some really nice roads in your area.