Yesterday I was flying one of my TH and all of a sudden it went into 5 motor mode. I am here to tell you this is the most awesome feature of the TH. I was able to bring it back from 100 yards away and land it perfectly. I am very impressed with this feature. This is the first time I have experienced this. The cause was a motor power wire that broke off where it solders to the main board. I took the opportunity to get rid of the silly bulled connectors, all 18 of them, and solder the motor wires direct to the board. Lost 18 grams of weight and gained reliability. I will be doing two others the same way.