I bought 4 Hitech 225's. One of them was bad out of the box, two of the stripped in 2nd flight and the other one is still working but has trouble making it back to center. IMO, its marketed like it will work wonders on a .40 sized plane but the truth is that it didnt for me and many others. I have been wanting to try that cirrus mini servo with metal gears, I will go for it again on my next 40 sized profile.