Thanks for the advice guys.

I have played with my middle finger straight down the shaft to try and get it out of the action. Unfortunately, the penalty is that my grip becomes a little sloppy and all sort of bad things start happening.

I may try the double overlapping grip next time out. Maybe I will get a little more stability than taking the finger out of the action altogether.

I will definitely look into larger grips even though my hands are on the small side (I take a medium glove).