Funny timing for me to spot this thread. I've been mulling this over for about 2 weeks.
Right now, I'm going back and forth between:
a) 2 hours of private instruction, and a lot of ammunition.
b) a second Glock 19 Gen 4, an hour of private instruction, and ammunition.
More and more, I find myself focused on software. The second G19 Gen 4 is simply to have redundancy for my ccw. I already have a Glock 23 Gen 4 that can fill in, though...
Yeah.
Probably training and a lot of ammunition.