I have owned all types of servos from expensive Futabas, Spektrum, Savox, and JR. At some point every single manufacturer I have had failures. Most recent was a JR 8411. I have a friend who has been testing these in his Jets one flight surface at a time and now his jets are fully controlled by Blue Bird. And he has also convinced me to try them out. I have ordered 9 BLS 3057 for my Top RC Galeb G4. He has 0 complaints about them. and for the performance they and torque and price looks like a winner to me. I wont say I will replace all my airplanes with Blue Birds but def gonna give them a try.