And it honestly doesn't slow the matches down much more than revolver...
I don’t think an experienced PCC shooter is any slower than a handgun shooter at all. Aside from tacking 3 seconds onto either end to pocket a flag, and then stab it back in at the end of the stage.
Where you run into problems is new guys - mostly because they inevitably use $5 Uncle Mikes floppy zipper cases they don’t want to get dirty. Casing and uncasing a rifle takes a minute, even when you’re used to manipulating the weapon and the case is stiff.
I now leave the two rifle racks on the side of my cooler-carrying wagon permanently now, and insist that “bag guy” uses it to help speed the squad up. I’ll roll the wagon over to whatever end of the stage he’s going to clear his gun at, and then he doesn’t have to fumble about. Grab it and a mag, walk to start spot, shoot, then flag it and bungee it in.
Handgun guys get the same offer to toss their junk in there, they just have less to carry.
I won an IDPA match once. It was neat.