I love my Mossberg 590 Marincote from the mid 90s and I’ve been running it in multigun competition the past few years. Initially I could run the slide as fast as I could shoot and it would keep up with me, but the last few times I’ve gotten clicks on an empty chamber several times per match. I haven’t changed my technique and I’m running the slide back all the way, just quickly. I replaced the magazine spring with a Wolff extra power one a couple matches ago but it doesn’t seem to have helped. I do keep the mag fully loaded at home if that matters. Do I need to try a new interrupter or shell catch?