APC 15x4W

It is the only prop I have tried so far, it worked so well I didn't try any others. Spool up is ok.

The engine pulls so well I had to add -50% expo to the throttle so hover is now at 1/2 stick. Without the expo I was hovering at 1/3 stick and had a hard time stopping it from climbing.

First tank was 9,700 and 15th tank was 10,900 with the 15x4W, stock muffler and 10% fuel.

No complaints so far except for the muffler wanting to loosen up.

I should mention that I mounted the engine upright. I have one inverted 2 stroke and it will be my last