I am LE and looking to put a laser on my Glock27. The weapon is used as a BUG and off duty carry. I am looking at Crimson Trace laser grips and LaserMax guide rod laser. I like the LaserMax because of the master on off switch so if I choose not to utilize the laser I can keep it off but I watched the CT video which shows the advantage carrying with a laser ready to go as soon as you grip the weapon in those "Oh crap" moments, which I like too but has no master on off switch. I do not like CT's laser guard which has BOTH advantages but is very limited in holster choice. Not having any experience with either I would value your opinion on which would work best for LE.