With my GI configuration 1911's, I wear a thin shooting leather glove, one where I cut the forefinger off at the knuckle so I can feel the trigger. If I don't do this, the thin A1 GI configuration grip safety will wear off the web skin on my hand around round 60 or so. At least the hammer hits the grip safety, not my hand.
an original WW1 1911 had a very short grip safety, so the pistol could be easily thumb cocked. The Army manual of arms was magazine in weapon, round in chamber, hammer down. The Navy carry mode, all the way to my Dad's WW2 Blue Jacket manual, was nothing in chamber, maybe magazine in gun. The Navy was very worried about rounds rattling around metal ships full of people and explosive compounds, so often the Office on the Deck had an empty pistol in his flap holster.
Compared to the GI grip safety, I can shoot beavertail grips for a long time.
I currently prefer the older Clark beavertail.
This beavertail was designed to hold the handgun high in the hand, so your fingers don't bump the thumb safety one way or another, and it was designed for the Bullseye Pistol safety practice of the era. That is, on the load command, shooters were to put their thumb on the hammer spur and hold it as the slide chambered the first round. A combination of low grade mil spec parts, and trigger jobs, lead to all sorts of hammer following issues, so that it became standard practice to hold the hammer back with your thumb, so it did not follow the slide down. There is enough room under a Clark 180 beavertail to get your finger under the slide. You cannot do that with these later beavertails.
Also, the Clark beavertail allows easy thumb cocking, and hammer lowering. Two hands should be used when lowering the hammer. Lowering the hammer with the thumb of the shooting hand is guaranteed to create a negligent discharge when the hammer slips out from under the thumb!. I consider this tantamount to suicide:
EEK!
This is more controlled
Late model beavertails block access to the hammer spur both in cocking and decocking. Cult Cocked and Locked might as well design the hammer out of the gun, install a striker, as they have made the hammer functionally
vestigial.