You got good advice there, I would just add that you should not neglect backing off the HS needle a bit after achieving max rpm. I got sloppy about that and my usually dead-reliable OS 70 cut out on take-off and I had an awful crash. I think it was on the edge of lean, and then in a nose up attitude it got a bit leaner. My impression from playing with the engine afterward on the test stand is that there is a fine point in the needle setting where you go a little leaner and the engine just quits. It protects the engine from lean runs, I suppose, but it can be hell on airplanes!

But as long as it is adjusted properly it is a really sweet engine.

Jim