Y0u don't get hit by porc quills when swinging those, all other weapons you get hit when you swing, so the tradeoff is bad.
You just use those and the shifter cant hurt you, so when he switched forms, you switch to primary weapons.

Crushing blow lags people for hand specs. Not sure mages/shamans have a counter to that lag.
pummel I think if it says dazed can do minor lag, and brusing can leave them vuln blunt.