This time around, lets look at drawing from the same location but from beneath aclosed-front cover garment.
In cooler weather it might be a hoodie, a heavy sweater, or an anorak or whatever.
The support hand may be occupied with a communications equipment or illumination equipment.

For the safety and peace of mind of the photographer, demos were done with an Odin Press dummy version of theSpringfield Mil-Spec 1911A1 .45. Photo: Gail Pepin
For that reason, I recommend the Y-hand and pegged thumb technique.
That hand sweeps up to as high on the rib cage as it can get.
Now comes the peg.

For the safety and peace of mind of the photographer, demos were done with an Odin Press dummy version of theSpringfield Mil-Spec 1911A1 .45. Photo: Gail Pepin
Let the tip of the thumb press against the rib cage.
I found that as a right-handed shooter, dropping my hipsdown and to the leftsolved that problem.
Earlier I mentioned theguyebarashirt.

There will be times when you need one hand to block or parry, and have only one hand with which to draw. Plan and train accordingly. Photo: Gail Pepin
The American bowling shirt in some iterations has the same features.

Hackathorn Rip 1 of 3: Gun hand begins its reach, as support hand prepares to pull cover garment upward… Photo: Gail Pepin

Hackathorn Rip 2 of 3: …shirt over holster is pulled as high as possible by support hand, as firing hand takes drawing grasp… Photo: Gail Pepin

Hackathorn Rip 3 of 3: …some shooters prefer to pull the garment up with both hands: positive, but slower. Photo: Gail Pepin

Alternative Hackathorn Rip (1 of 2): If you’re sure it will be “guns” not “hands” (distance is a factor here), you can draw faster if hands start low… Photo: Gail Pepin

Alternative Hackathorn Rip (2 of 2): … to get the Hackathorn Rip underway sooner. Photo: Gail Pepin

One Hand Draw (1 of 3): With support hand in block position, the gun hand has to do it all alone: thumb in “Y-hand configuration lifts garment, pegs thumb at ribcage… Photo: Gail Pepin

One Hand Draw (2 of 3): …takes drawing grasp… Photo: Gail Pepin

One Hand Draw (3 of 3): …and “clears leather.” If the support hand is not needed to fend off an attack, it can move to a two-hand firing hold, as shown. Photo: Gail Pepin

Hip Throw Draw (1 of 3): With your arms at your sides, you can visualize where the hip-holstered gun is under the untucked polo shirt… Photo: Gail Pepin

Hip Throw Draw (2 of 3): …Y-hand thumb has lifted shirt while support hand is up to block. Right-handed shooter’s hips thrown to left has helped “pull holster from around gun,”… Photo: Gail Pepin

Hip Throw Draw (3 of 3): …and the gun is positively and expeditiously on target, whether the choice was two-hand hold as shown or one-handed hold. Photo: Gail Pepin

This is the “Y-hand,” useful for many things in martial arts, including the defensive firearm. Photo: Gail Pepin