Planes out of Annual and a quick update on my Tempest Fine Wire plugs. I did a short flight after picking up the plane at the shop. Nothing noticeably different in the startup, taxi or flight. In the taxi I had the RPMs up a little to make sure everything was charging, warm the oil, etc., etc.
But when I was taxiing back I seem to be moving along at a pretty good clip and went to reduce the RPMs, only to find I only had bit of throttle movement left. Oh Great, they messed up the throttle adjustment popped into my head, but wait, I'm slowing... The gotcha is that I was down to 725ish RPMs with a perfectly smooth engine. I've never had my engine not "grumble" a little at very low RPMs. Sure, they could have done a exceptional job of tuning, but my guess is the difference is the plugs.
It will be interesting to see what happens when I get a chance to go up high and check LOP.