My after run proceedure? Hmmmm...

Drain fuel, wipe bottom of plane, put plane in van. Done. LOL

Seriously I found the bearing issue is actually sort of odd. The more you fly the more (noticably) runs you seem to get between bearing changes. Rust develops when they sit. If you don't let them sit long, they don't rust.

This is why as a general rule I ask people how often they fly before recommending a fuel. if you fly a lot, run ALL synthetic. You'll hate life if you don't.

If you fly occasionally, with sometimes extended periods between runs, use a fuel containing some small amount of castor. Castor is a double edged sword: It coats the bearings and helps prevent rust. But if you fly all the time with it, it varnishes the inside of the engine causing heating issues and breaking rings. If you fly occasionally and run all synthetic, you take more of a risk of letting rust develop. My solution? Fly a lot, run all synthetic, and always have a spare bearing on hand. It worked for the most part.

This is only for a 2 stroke of course. In a 4 stroke, ALWAYS run all synthetic. I've found Cool Power 30% heli makes ALL 4 strokes run better, no matter the engine brand. And yes, I'm partial!!!! But for good reason. It works.

But after run oil can help, just not in every single situation.

-Mike