You will miss 7 out of 10 shots if that moment arrives, just luck of the draw. Adrenalin will take over and you will find your shots random, unless you have specialized training.
XS Big Dot for what the Shield was designed for.
Ameriglo SW-345 on my Shield 40. Love them.
I've got big dot on my 9 but am having an ameriglo installed on my 22. Will let you know...![]()