· Semper Fi
Pretty informative post.You took one step forward by buying a NEW gen4 Glock27. But then took 10 steps backwards by changing the internals out to non-stock parts, before even shooting it.
The enemy of good, is better. The worst enemies to Glocks are the users.
You will eventually get it right.
I have one for ya....
The enemy of improvement is complacency and acceptance.