I can still remember when we had a choice for competition, it was K&B, Johnson and Fox. I flew Fox's because of his repair policy. I left out my McCoy as it was my first 35 for competition.
You missed a few, even when Johnson was around, there was also Veco, and Bob Gialdini used a Forster.
I enjoy nostalgic memories as much as the next guy, but you have much more choice now than you did then. PA, RO-Jett, OS, Discovery-Retro, Stalker, Doublestar, Saito, Thunder Tiger, Magnum, Enya, Plettenburg, Axi, and they all work better and last longer than they did back in the day. You can get more and better stuff for stunt now than you could in 1970.
Brett