If a factory plastic part like tkg made fixes the problem, I would be happy to purchase this engine with the part installed. I can see this part incorporating a heat spacer flange.

Reading the manufactures statement; this not being a problem unless the engine idles for over 30 seconds and does not effect flight is a huge cop out! I don't do a elevator landings. When I land, I fly a down wind leg, cross wind and final, land and taxi back. If an engine will not allow this type of performance, I will not buy it.