You know its weird, I used multiplex back in the day, wont go into why, but they were some great servos, what I did like about them is that they also included the holding power of the servo in their spec's. The holding power is not the same as tork, which was one thing that I learned. Try turning your, well don't try it but this is what I did with multiplex, I turned on my radio and turned the wheel full right and lifted the boat up in the air with the weight of the boat in the opposite direction, if the servo slipped, then I changed it out. The worst that I have seen is boats with servos that did not hold in turns and went into another boat. In today's servos that problem my not be a factor. Also a low battery cell will do that too.