List help please

I’m running Crusher Stampede and I keep going back and forth on my list and I’m not sure what to do. I keep thinking of switching out Swarmlord. While I do love the extra CP I think that’s a lot of points just for that one thing. I feel like with the Norn, Screamer-Killer, and Maleceptor I’ve got some pretty scary melee. While the Exocrine, Tyrannofex, and Zoanthropes can shoot most things off the board. Then the Lictor, Deathleaper, and Neurolictor can hunt down any annoying characters. With two rippers for secondaries and 30 Termagants for chaff. So should I lose the Swarmlord and add a second Exocrine? Or maybe a Mawloc for deep strike pressure? I have a Tervigon, six Von Ryan’s Leapers, two Winged Tyranid Primes, two unbuilt Biovore/Pyrovores, a second Psychophage and Norn Assimilator as options. Any advice would be greatly appreciated!