Introducing the Mato XL for Glock.
Bigger
Adds space high up on the grip to make room
for your secondary hand where you need it.
Better
The resulting shape of the backstrap is more ergonomic
and gives the gun a more natural grip angle.
But Not For Everyone
You can "train around" a grip that's too small or you can fix it.
If you have bigger hands, you can get a better grip.