I have a problem with my hop up on my jg M4. When i put the nub in it is already about 60-70% on and i cant get it to just sit there not pushing on the bucking. I cant get it to go any lower than like 60% on when i turn the gears on the hop up. I turn the hop up all the way down and the nub is still pressing on the hop up pretty hard. I could use anybodys help to fix this.