Hello all, I loved my gen 3 G19 so much I picked up a nice used gen 2 model as my backup. I have been wrestling with this thing for an hour and I cannot get the slide off of the frame to clean the pistol. I have take my G26 and G19 (s) apart about a billion times, but this one will not cooperate. After I disengage the trigger and pull the release controls, I get about a half an inch movement before the slide stops. I can reset everything, fire the pistol, feed the pistol. Anyone know what could be the issue here?