Thanks--I've got the finger-pad-placement-on-the-trigger thing down, was just wondering if there are other considerations from those who shoot a lot.
Like I said, the three different arrangements all feel fine, I can work with any of them, but definitely notice the differences from when I slide my straight finger off the frame down toward the trigger. With the smallest, my finger pad ends up right on the front edge of the trigger guard, with the largest, it just barely touches it.
I have a light that I might use occasionally, so the smaller grip would allow better finger-tip activation of the switch, so I will probably stick with that. Overall, the smaller feels marginally more comfortable.
It's all good!!!