Separate topic, but you can setup double feeds as well. In a SB a LONNNGGG time ago, your partner has to setup your mags. General intent was 2 randomly spaced casings inserted to simulate double feed to occur randomly in a COF. My partner happened to put like 4-5 in one mag. . . ended up being during the portion of the COF where I was at the bottom of the VTAC. . . evil. . . I could hear them laughing. . .
We do one called "F" your buddy where buddy loads mags and tosses in a couple snap caps randomly and inserts in your holstered firearm.
Tap and rack dance.
Some "buddys" will fill the whole mag with dummy's, but after 3 or more, I automatically change mags
I like iron sights but I (or should I say my eyes) finally broke down for the dot on my HDS.
G19 with light and holosun, it does not conceal well on my slim
figure for CC.
I do well with my smaller frames from concealed but usually don't go anywhere, maybe town once or twice a month and feel the CC need more when returning home and entering my house.
My range bag always has extra battery's for all equipment that requires them, including ears, but I've given them more to others than needed myself.
Our qaul times are all under 2.5 up to 7 yards (one guy under 1.5 but he's an alien), around 5 sec @ 10 yds and a hair over that from 15yds (alien is faster).
USUALLY 100% or 10 points off if trying to push it.
Have not shot test with HD gun yet but will this weekend.