Pure rookie comments, Stan. I believe I shoot with a relatively light hand grip on a gun, but I can sense a bit of tightening up. In truth, it's probably a slight flinch and I can pick it up depending on the shooting.
I close my eyes when I'm try mounting especially a different gun and feel for the shoulder, cheek and probably if my left elbow is at its normal bend and angle off to the left. Then, I see if I think I have the right sighting picture.
I think I like the touch of a pistol grip on my right palm area more for being repetitive, and maybe for managing some twisting component to recoil. I don't own, or have much experience shooting one, but I think a diamond cross section straight grip wrist, that's likely fitted close enough, gives much more tactile feedback than some others.
The thing I really try to do is have my feet, knees and hip sort of anchored as one unit and my shoulders, arms, cheek, head and gun kept aligned as another component. Then, at least the majority of the flexing and movement is in my midsection. It doesn't necessarily work, and it used to be easier. Fun topic to toss around.