Different grip for Weaver vs Isosceles?

[gilfo]

Is there a different way to align your thumbs for the different shooting stances mentioned above.
Weaver thumbs ointing up next to each other
Isosceles thumbs point straight along the slide?

I was told it make a difference for the two.

 

[Vern Humphrey]

There is no difference in the grip between the two stances.

There are different grips that can be used with either stance, basically thumbs overlapping or thumbs pointing forward.

 

[The Lone Haranguer]

Where you plant your feet or however much you bend your elbows have no bearing on how you actually grasp the gun. The various hand and thumb positions you see, while having some bearing on controlling recoil, are more about smooth consistent trigger control, and will vary depending on both gun type and shooter's preference.

 

[9mmepiphany]

As lucky would have it, I have a set of pictures that just fit this inquiry

This is the grip that is taught with the original Weaver stance, as it is taught at Gunsite:


It is usually referred to as the Thumbs Up grip...even if you point the thumbs forward. The support hand is positioned more in-line with the grip angle as the philosophy of the Weaver is based on downward force being applied with the support arm.

The Modern Isosceles was designed with this grip:


This is referred to as the Thumbs Forward grip. The support thumb is extended forward along the frame to point at the target and the top of the wrist is straighter to apply camming pressure to the gun frame. It is based on the philosophy of surrounding the frame in such a way as the allow it to recoil and return to it's original POA.

While you can used the Thumbs Up with the Isosceles arm position, you can't use the thumbs forward with the Weaver arm position as the force vectors conflict.

Either grip can allow accurate fire, but the Isosceles allows faster followup shots while maintaining the same accuracy