They all will jerk a bit, has to, as the actuator slides out. Angle of the trailer will have a big effect too high or low; make sure you are level, after you check the obvious fluid etc. After stopping, I just ease on the gas a bit to pull the actuator out softly before jumping on the gas.
What is your total weight compared to your vehicle tow rating, if you are very close this will also affect how much jerk you are feeling on takeoff. i.e. 5000lbs rating, 5000lbs total weight. I used to tow a total weight Cobalt with a Jeep Grand Cherokee, 5000lb rating, 5100 lbs boat and trailer, angle was a bit low and you could really feel it jerk. I now have a Ram 1500, 6500 lb rating an 5500lb total weight MC, set up is perfectly level and you still feel a little, but a huge difference.
Only other way around it is to add one of those shock receivers!