Get has much as your finger on the trigger and pull straight back.. Strong weak hand grip(support hand) .. Glocks are notorious for shooting left out of the box..
The 40 Cal hundo xl is made for longer OAL and coated bullets.. The xl Hundo has Tighter tollarances then most barrels..
Any round that does not just drop in I will recheck in my barrel.. Which is very few.. If they don't easily drop into my barrel then the round goes into My practice bin..
That simple..
If, at the initial draw the 1st target is over 15 yds away I will look 6 feet in front of the target at the ground, this helps me pick up the sights quicker at longer distance targets, otherwise at the A zone.