Question about grip

Same grip for all clubs. The only time I change my grip is in greenside bunkers - I weaken my grip, which opens the blade thru impact (old Gary Player tip). Ball pops out nice & soft.

But no, no way do you change your grip for a driver swing versus an iron swing. You ever seen a pro do that?

To me, the swing is always a battle between consistency and shotmaking.  For most amateurs (even good amateurs) who are weekend golfers, you'll probably score best trying to hit the same exact shot every time.  Pick whatever swing, shot shape, trajectory that you do best and use that for every shot, every club, making adjustments for wind, lie, etc.

I'm always trying to change my trajectory and shot shape to fit the situation.  When I'm trying something that deviates from my normal shot (i.e. I'm trying to hit a low cut with a mid-iron into a right-to-left cornering wind) I have maybe a 40-50% success rate pulling off the shot.  If I just hit a high draw and played for the wind to move it a lot, then my chances for success (hitting the middle of the green) would probably go up.  Of course, that would be boring.  I'm always looking for that perfect shot, and getting perfect shape and traj into a cornering wind, hitting the middle of the face and knocking it stiff from a difficult situation, is the ultimate thrill.