No reason you still can't have a second light to go with the mounted light.
The difference in draw times is negligible using decent holsters. In anycase (SIC) it would be a mute point seeing that if you have reason to check the house then it is likely your not doing so with a still holstered handgun.
Another plus side is a mounted light on a handgun adds a bit more weight up front allowing for faster more accurate follow up shots, especially on polymer handguns.
I'm a little bit on the fence regarding whether I should mount a light on my "house" gun. Given that my night vision is getting worse with age and the general requirements that you be able to identify your target (and what's beyond), I think this would be prudent.
That said, I also wonder why I rarely see LEOs, etc. with handgun-mounted lights. Some defensive pistol experts (like Ayoob) also seem to be less than enthusiastic about lights.
'Reverse Chapman' is all D.R. uses; and he speaks about it at length and very well. (Made a convert out of me!)
Originally Posted by Emmett4glock
Thanks Arc Angel; it was your glowing reports that prompted me to ask this question. Would you care to comment further on what you feel are the advantages of the Reverse Chapman? To clarify, did you experience less fatigue, better accuracy, quicker
You are anticipating the recoil. The short grip shows it less. It is subconscious.
The cure is a surprise break. Pull the trigger so slow that you don't know when it will fire. Take 30 seconds to slowly and steadily pull the trigger straight back toward the rear sight while keeping the sights on target.
If you don't know when the gun will fire, your brain won't know when to flinch, thus your hands won't be suddenly moving in anticipation