QSC Primary Pulling Struggles

I am running QSC Primary Clutch on 2015 Outlander. On Gen 2 bikes the QSC primary is removed with the OEM clutch puller. I have about 1,000 miles on the clutch and was going to remove and clean. Having issues pulling the clutch. I have threaded the puller on with a 400 ft-lb pneumatic impact and seemed to bottom the puller out. Meaning I can’t get the puller to turn any more and have impact turned up to max. The clutch has not moved at all. Tapped with a rubber hammer to break loose no luck. Anyone have any tricks or alternatives? I can’t believe this clutch fits that tight. I torque to spec (75 ft-lbs) when initially installed with a torque wrench. Get a bigger impact? Concerned about breaking the tool in the clutch. I know the OEM clutch removal tool is a taper design, does it bottom out? Will it keep turning with higher capacity impact? Any help is most appreciated.