Remember a firm grip is not a tight grip.
If you grip a hammer and try to nail, you want enough swing so the peen does the work and not your arm. Same thing with the handgun.
Too tight of a grip and you will get tired more quickly than if you had a firm grip.
"A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."
Life Member NRA
Life Member NAHC
Former President of the ECPT (Eifel Combat Pistol Team)