We practice with semi-auto pistols a lot . We do a lot of steel 6X6 inch plates @ 15 yds , man on man . We do IPSC targets from one pace to 25 yards . We bounce plastic bottles from 15 yds to past 50 yards . It takes a lot of practice to do this on demand , accurately , quickly , and safely . If one was to see us doing 3 shot drills at a couple of paces , they'd prob'ly think we were just blasting and wasting ammo . Would not be true .
My eyes have been getting older too . Also the time may come when I'm not wearing my glasses nor in good light . I've gone to Trijicon HD ( High Definition ) night sights on all my guns they're available in , standard where I have to , and a Burris Fastfire III on one ( VERY nice out to 50+ yds , but bulky , good house / truck option ) .
I'm an old dog who has not paid attention to the advances made in the last 30 years , but now I'm playing catch up on this new ( to me ) stuff , and I am learning new tricks .
Chris