RE: hitec5645 servo//jet use??
Now now Bob, let's not exaggerate. I've had one failure with the Hitec 225MG mini servo for the retract valve. Two other times it was very jittery and I attribute that to the 225 having a issue with a off the charger 5 cell voltage with no regulator and it stopped doing it after a few minutes. No excuses for that but you shouldn't condemn the entire line of servos for a problem here or there. If that was the case we wouldn't be using any brand.
My Reaction 54 has 4 5645's and two 5625's all of which have performed flawlessly in dozens of flights and I have 5 5645's in their third aerobat with a combined 300+ flights. Like Bob said, it's an old story
Marty