there is no weight on my shooting arm i hold the gun in my shoulder using my left had on the regBon said:depends, the way I hold my marker, all the weight is just on the inside of my right arm, and i jsut use my left hand to support the front while firing with the right, I didnt notice much difference with a 1.5L tank cos of the way im holding it.
My m8 tried it on his ego and 1.1L tank, and after a few mins of getting used to the new weight distribution he was loving it aswell.
So overall, nah, Dont thinkso.