I wouldn't trust hobby king, but that's just me. I'll try their stuff on my SC truck and buggy, but I won't trust their stuff in anything that flies. I kinda think of them like Harbor Freight tools. If they break or don't work I won't mind too much and I'll throw it in the trash. If it works, then I saved a couple bucks.

Anyway places like Valley View sell ignitions that'll work well too. Most of them are made from the same company anyway.