When I was a kid in the 60's, we were always told turn the ball not your wrist.
The only glove in those days was a Don Carter glove which was kind of like a golf glove with a raised pad that forced the ball on to the fingers and thumb. Most people just tucked their little finger which created the same effect.
If a person then spread their index finger and stayed behind the ball, the combination accentuated an early thumb exist and created a great deal
of axis rotation as the fingers cleared. A straight, firm wrist also helped.
Today, all that isn't necessary. I may be committing heresy, but I'm not sure gloves of any kind are necessary with modern bowling balls.
Most people probably lose RPM's wearing a glove. It may give them a more consistent release, but I'm not convinced they get more leverage or more RPM's. I'm not sure those who wear gloves allow their wrists and forearms to relax enough to throw a ball with optimum efficiency. I'm sure many women would disagree.
From previous discussions, speed out of the hook phase and RPM's are what create conditions for the best carry, assuming the ball hits the pocket. Any device that limits speed or RPM's has to be questioned.
As a matter of release our hands will rotate as the thumb comes out, the ball begins to tilt and then the fingers clear. Allowing that to happen with a completely relaxed hand seems to be the best way.
This may all be mute for those who didn't learn to turn the ball in their youth. I don't know anyone who is raising their RPM's dramatically if they don't already know how to do it.
Some kind of perverted muscle memory that keeps people stuck between stroker, tweener and crankers. You can take stuff off the ball but its really hard to learn to put stuff on the ball.
Finally, for those who don't get a lot on the ball, should they try to learn to crank or just drill their ball for the way they do release the ball and optimize their delivery that way?