Hi Oosel!

I got my Hacker from Fitz at FX aeromodels. He knows what works and what doesn't, and if the Mega was not a good product, he wouldn't be selling it. I have read a lot of posts in the airplane threads that the Megas run just fine. I've only read a couple of heli posts, and now I can't find them.

One thing though, I'm pretty sure you're running a Corona with a Fusion motor. The Fusion has a 3.2 mm shaft, and the Mega is 5mm. You might want to find out where to get a different pinion, OR machine out the inner bore of the one you have.

Maybe try a "Corona Mega" search to see who's already done this.

For what it's worth,

Russ