Replied to the pm, this is more for the scad of unknown that read these comments.
Your motor is currently turning 5,200 rpms. Should be at 5,700. When you prop it to turn proper rpms your holeshot problem will vanish.
Now you could put that plastic thingy on your motor and you could maybe see a better holeshot but it won't change your motors output, which running at too low rpms will absolutely shorten it's lifespan. Undue stress on bearings and rings will cause issues way before they should.
Marble Falls/Seadrift TX