RE: Spektrum DS821 Sevos Junk or good
G'day Mate,
They are JR servos, I have 4 of them in my Katana with OS 160FX, 2 on elevators, & 2 on ailerons, the servos are strong, accurate & reliable, just like any JR servo I have used, but DON'T use any type of locking liquid in the screw that hold the servo arm, it will wreck the plastic, there is no need to anyway, the screw won't come loose.