This is your friend -
And not just to get the last couple in there but all the way through.
https://www.amazon.com/Maglula-ltd-UpLULA-Magazine-Unloader/dp/B01MQTZVZY
1. I have one and have for months and really never use it b/c I've not needed to do so with my steel-vise like fingers, until I started loading 10 rounds instead of 6 or 7 then the pain started in, and then there is the time my finger slipped and I nearly sliced off the side of my thumb (small exaggeration there, but it did hurt and did bleed and did take some skin.
Was this the Pearce version or Glock's? While tight, I can get the 12th round in by hand (and mine are small) using Glock's parts.
2. Pearce, for both: I would have bought the Glock if Point Blank would have had Glock for the very reason of "perfection" vs. "close/imperfection" and idiots buy the imperfections so Pearce doesn't have to do better. (Yes, I was guilty today, therefore, part of the problem with the idiots.