I've used the BR-XL's ( http://holmeshobbies.com/product.php?pr ... featured=Y ) with a lot of success in my Feather running 18v Dewalts on a 6s Lipo. I recently switched over to a prototype RageBridge ( http://e0designs.com/products/ragebridge/ ) that is in production right now and will be released publicly next month. Both are fantastic controllers and I am happy enough with the RageBridge that I intend to use it on any upcoming hobby/featherweight bots I build.

Testing video with the RageBridge: