Richard-
I was surprised to see someone else had actually run at Stuttgart - when were you there ? I ran there in 77 at the combined Regional/National in April (I think) I was running a Lola 342FF and was lucky enough to win the combined Formula race (regional) overall! They had everything (FF,FC,FSV,FA. and F5000) but FV in one race. Surprised the heck out of me! I suspect that a lot of the guys were using the Regional as a test session.
I learned at Blackhawk and RA - those places will always be dear to me for that reason.
What makes the hill climbs the most fun? The "penalty" factor of contending with a drop off?
You have an impressive list!
Pat