I tried to remove the lower pole to attach my new 5.75 coil. I lose the lock an pushed the buttons but could not remove it. I bought it to make changing coils esier.
Loosen and tighten the cam-lock a couple times, go to the loosest spot and see if the outer nut (part you turn) will slide a bit on its pole. It'll eventually come apart. You could also try sticking it under some warm, running water and then loosen-tighten all over again. You probably have a little dirt in there...