Originally Posted by surfish95747
I find that while shooting the light is always coming on as I put pressure on the grip. But I assume that in a shooting situation a light coming on is not going to be a big deal.
Yea...With the DG switch the light WILL come on when you tighten your grip to shoot...not a big deal as your gun will be making loud noises and shooting fire out the end...people will figure out where you are if they don't already know. It's before a shooting (while searching, etc.) or after when the light discipline comes into play.
We spend a lot of time (I wish we could spend more) on low light training and the use of both hand-held and weapon mounted lights. It is important to understand when to use them and when not to use them. We train if a shooting occurs to shoot, light off, move, then assess. Intermittent light will likely be appropriate during assessment, and there will be times where keeping the light on a suspect or threat area would be more appropriate.
And that's the rub. No situation is the same, thus it's impossible to give one solution for every problem. This is why we focus more on using the equipment you have to the best of your ability. There are drawbacks to not having a DG switch. We train to mitigate those drawbacks. There are also issues that arise with the use of the DG switch. We train to overcome those as well.
The DG switch is a great tool for searching, as you can open a door, pull up covers on a bed, etc, and still have full control over your light and pistol. It also allows less potential for inadvertent constant-on activation. I know when shooting without the DG switch I'll sometimes accidentally rotate the toggle into the constant-on mode...Not a big deal unless you forget to turn it off or leave it on for a speed reload (I call that "signalling the space station"). With the DG switch, that's not an issue...You just have to get used to sliding your middle finger forward to avoid keeping the light activated when you don't want it on.
Another big advantage of the DG switch is that startle "draw/fire" response. Gun fights often (almost always) involve movement on the part of both good guy and bad (or both bad guys). As the good guy, we are often behind the reactionary curve and are trying to catch up with the actions of the bad guy. The likelihood of having to draw and fire immediately, possibly one handed while moving, makes the effective use of a toggle-based weapon-light extremely difficult. I rarely see deputies use toggle lights during these types of scenarios. On the other hand, the DG switch is intuitive, and those using it almost always turn on the light and seem to make more accurate hits in general.