I use the wildcat 30% or cool power 30%, my lhs carries both which is why I will use one of the two. The wildcat seemed to smoke a bit less than the cool power. I haven't made any brand loyalty because I haven't been into nitro helis for more than 2 months. Both of them seemed to run pretty good to me, the store owner tells me he sells more of the wildcat than cool power but I don't think that means much.