I'm trying to transition from a G17/34 to a STI Trojan for IDPA/USPSA after shooting the Glocks for 6+ years.
Even with small hands, where I have to "flip" the gun "sideways" to hit the magazine catch, my SLRs are +/- 1s with a G17 or G34. I allow my thumb to rest on the slide stop and the action of the magazine seating pushes the gun "Up" while the thumb stays in the same poision, dropping the slide.
I've been practicing SLRs with the SS 1911. I drop the slide with the support hand thumb as the gun is moving to the target, which causes a sight lift as I'm acquiring the sight picture. (For the 17/34, since the slide was dropped well before the sight acquistion, there isn't the sight lift from dropping the slide later).
My good SLRs on the 1911 still aren't close to as fast as an "average" G17/34 reload, and the bad ones feel like they should be timed with a sundial.
The 17/34 seems to lend itself (ergonimocally) to fast SLRs (and reloads in general, at least for right handers) - the large, loose, plastic slick, magazine well is a lot easier to "hit" than a narrow 1911 single stack, and the position of the slide stop allows the "non-reloading" hand to drop the slide. unlike the 1911.
So here the question, can I reasonably expect SLRs to be as fast with a single-stack 1911 as with a G17/34? Particularlly for people who have transitioned from the Glock to the 1911, how much repition did it take to become proficient with SLRs on the 1911 and did you ever get as fast compared to a Glock?