I have and like the PC gun. As you shoot IDPA already you are aware of the 4" limit on barrel-length. If you have the chance to handle both, one with the full underlug barrel as well as the PC gun, it'd be nice for you to be able to see which one feels better to you. I personally don't notice a whole lot of difference, but I've tended to not be all that fussy about small deviations in balance as I'm not that fantastically fast with my runnin' & gunnin' as all that.....