Dumb question coming here:  Does a Parkhurst device include something to guide the cartridges into the magazine well?  The way it looks to me, it just allows a stripper clip to be used.  That would allow the rounds to be forced down, but they still must make a left-hand turn to enter the well.  I'm just trying to wrap my head around the functionality of it.

Also, if someone modified his rifle to attach an aftermarket Parkhurst device, wouldn't that violate the "As Issued" rules of CMP competitions?