RE: Back in after 20+ years
Well, Randy, I applaud your decision to follow a basic training schedule. I presume it won't take very long for you to get back in the groove. Good stuff.
My second plane was a Tiger 60. I had an old (I bought it at an estate sale) OS .61 SF engine. It needed bearings, but it ran perfectly. I flew it for several months when I moved to a Super Tigre 75 with a tuned pipe. It was truly fun to fly.
You stated you wanted to fly with an OS .75 AX. Great choice. I have one and love it. It has plenty of power and is easy to start, tune, and operate.
Best of luck with it.
CGr.