Updating -
Signed up for a class last weekend that was aimed specifically at single-handed manipulations. Sponsored by the Buckeye Firearms Association, it was taught by one of my favorite local instructors, Andrew Blubaugh of Apex Shooting and Tactics. "Immediate Action Under Duress" was aimed at the beginner/intermediate shooter, specifically working manipulations and marksmanship single-handed, both only with the dominant hand as well as with the non-dominant hand, under the assumption that your day has gone from bad to worse, and for whatever reason, you're now in the fight with only one arm/hand that can be used.
Almost 4 years ago to-the-day, I'd taken Chris Costa's Handgun Employment 02 (currently named HET2), which focused on much of the same skill set. At the time - and even to-date - that was the hardest that I've ever run my pistols. I picked up a ton of great information from that class in terms of single-handed manipulations, but seeing that it'd been 4 years ago, I decided that Andrew's course, if nothing else, would be an excellent review.
It turned out that I was able to not only reinforce some of what I'd learned previously, but that Andrew also taught me more than a few new ways to attack the problem, and I walked away even adopting some new/revised methods.
One such concern was the holster.
I found it extremely hard to holster the pistol at-slidelock, BACKWARDS into this holster. The placement of the XC1, when paired with the lack of slide material at the muzzle, made the reverse holster (with the magwell pointed at 12-o'clock, instead of towards the 6) stroke - as you would do if you were only able to use your non-dominant hand - exceedingly unstable.
Given that this reverse-holster technique ostensibly allows the shooter to remain mobile while reloading the gun at-slidelock with the non-dominant hand, I found that the lack of stability conferred due to the hardware interactions to be self-defeating in this instance. I would much rather stick the gun behind my beltline or even in my pants pocket, should I need to move and reload. Alternatively, assuming reloading under cover, I would adopt a more traditional static position (behind-the-knee, between-the-knees, or by grounding the pistol) rather than reverse-holstering.
This is not a "complaint," per-se. Rather, just a limitation of this particular holster.
For the ability to carry a WML, though, I'm gladly making the trade.