I understand what you mean. I want my guns at 100% too.
Let me ask you a question. Does your feedramp have guide grooves in it where the bullet would kind of ride in the groove?
I noticed two distinct "tracks" in the fouling from a lack of better term where the bullets were contacting the feed ramp and being slid into place.
What I did was take a really small round file and filed only where those little tracks were to act as a guide.
I wasn't having any feed problems before or after filing the little groove, but I don't see how it would hurt anything either.
Here's a quick snapshot looking down at my feedramp to maybe help describe it a little better.
And if you notice, the grooves are not both at the same angle in relation to the chamber too. The right round does in fact feed more to the 11 o'clock direction.
It wouldn't hurt to try a different kind of hollowpoint in the gun. Especially if feeds other round nose.
I was also going to mention the follower like Tranteruk. If you can look at how the last round sits load up 2 more rounds so you can see how the right round sits and compare the two, will probably give your answer what you need to do. You may have to file some of the follower so the bullet seats more like the ones that are feeding are.
But you'd also need to do the same to all the other magazines you said you own and tried.
I suggest a different hollowpoint and see how that works out.