Probable the increase in holster sales with flashlights is due to all of the technological advances being made and that they are so  much more powerful and durable that if you have a light on your car, your bike or at your front door, why wouldn’t you consider it on your firearm.   Sure I am well aware of the fact that a light on a firearm should not be used as a hand held light because you would never use a weapon mounted light for searching.    The Streamlight TLR-1S has the strobe built into it and I am already aware of two incidences where police did not have to shoot because they were trained to “strobe” someone and used tacticals to subdue the bad guy without firing a shot.   Strobes on flashlights are not going to do the same as a taser or stun gun, but they can buy you a second or more of reaction time.   As a matter of fact, any powerful flashlight can give you a second or two in reaction time, if deployed properly.

Safariland leather duty holsters and concealment holsters are hands down the first place we go when someone wants a handgun light and although there are good companies like Blade-Tech and Desantis, none of them have the selection that Safariland has.   Recently the more “off duty” holsters have been popular with the6378  Safariland Holsters like the 6378 ALS or the 5188 paddle holsters.  It’s all about how much retention you want, as far as I know there is always a level of adjustment to these paddle holsters but the ALS is probable the best “off duty” holster if an Officer is trained to use 6280 style thumb release with the hood.   I would definitely not go back and forth between the Blackhawk Serpa Index finger release and any of the Safariland ALS or other Retention holster.  I think a similar problem can be had by going from an AR15 with a B.A.D. lever on your SWAT Gun and then a standard trigger on your Patrol vehicle, under stress, one mistake can be costly.