Yep,

I have one on my Great Planes Big Stik 40.

I'm still running the engine slighty rich and haven't peaked the top end yet, but so far i've had a half dozen flights and its going great. I'm using an APC 12x7 and it pulls that 5.5lb plane around like a pylon racer and makes it a blast to fly. I'll probably move to a 13x6 to slow it down some for the club fun fly events.

A local magazine reviewer recorded the 12x7 at 10,700rpm on 10% nitro. I set my needle so that it held an even 10,000 for the break-in flights and that was slightly rich.

The idle on my engine still needs to some adjusting and this weekend i plan on getting those needles tuned right.

The engine sips fuel even when running rich. I flew for 10 minutes and come back with 1/3 of a tank each time.

I like this engine so much i'm going to get another and put it in a Kyosho Osmose. It should be a good match.