I haven't used an AXI this large. I've used several from 5S size on down in the AXI line. They are a good quality motor. I think they have become too expensive for what you get compared to the competition. Hacker, Scorpion and Hyperion are all about the same quality for less money. Of course, that's just my opinion. My Opinion is also that Pletti's are way too expensive for what they are. Of course, I've only owned one of those. It was in a .40 size pattern plane called the E-Sport 10.