he he tanks for the offer gizmo, but as mentioned above I already have an xls 52. It has also just been run 3 tanks breakin and is strong as h.ll already. About nitro I don`t think I`m going to destroy it because it supposed to run around 0-5% and I`m at 7.5% tops, maybe less because I also added some castor, it was really weak when run without nitro.will try to tach it tomorrow. will a maglite work as light from behind the propeller or does most tachometers work only in good daylight?