Glad to help.
First, I drop the mag vertically, as it drops easier. Then I orient the mag well so that it matches the angle of the magazine, coming from the belt, with the muzzle tipped down slightly to aid insertion. I use my index finger to orient the magazine into the magwell, with a slight pause as I insert the magazine. That works for pistol and PCC.
I had my wife video me, using slo mo on the iPhone, when I was working the PCC reloads, and that identified inefficiency. This is what it looks like now, after working each aspect.
https://youtu.be/vt8yVvQdywI