RE: What To Expect From A 4-Stroke
A club of 230 special people, eh?
You're right, it's not rocket science. Pretending that using a tach is hard to do certainly doesn't do anyone any favors. Perhaps you haven't used one? You simply hold it behind the prop, tune to the peak RPM, and then drop it 300-500rpm. It's simple, precise, and very safe.
Why some of you become almost militant about this baffles me.