Riomouse, I notice that you are one of those "thumbs flopping
in the air" kind of shooters and your left hand is way forward, more
under the trigger guard rather than solidly down on the shooting hand.
By the by, is the angle of your trigger finger from grip to front of
trigger feel comfortable, especially during the steady DA pull through.
Do your stocks allow for a straight line of wrist toward gun, no canting
around of gun hand to more comfortably reach trigger.
I get what you’re saying, that picture looks like I am hitch hiking.
Part of it is a trick of the frames in bottom picture.
On the .357, my left thumb is pressed against the frame as I pull through my trigger stroke, the top one shows it better. The right thumb is down on the left hand.
With the smaller grip of the .44, my left thumb is hard down over my right, as it cant sit flush against the frame without sticking too far forward towards the B/C gap for comfort.
(J frames are the same, don’t want to feel any B/C blast.)
You are right that my left thumb came off the gun wide as it recoiled that time, it usually stays down more, pointed towards the target something more like this. (Im not death-gripping the gun, but these loads do have a bit of recoil so I should hold on better.)
( Another odd thing in that earlier picture is the muzzle blast is visible even though you can see the shadow of the hammer still back.)
The grip on the .357 is the factory Hogue. The grip on the .44 is a factory GP 100 compact grip, not the original weird-feeling grip (to me) it came with. The grip isn't bad on either gun, no more or less trigger finger reach than on my S&W K-L-N frames. The feel of the Ruger trigger pull is just not one I seem to agree best with (and none of my S&W have the big FO front sights).
I think it is probably a combo of the two.
Stay safe.