A friend of mine works for CT, and I have CTs on my 1911 cmdr, the new style with the switch under the ring finger, same as the revo.
CT have some up with new version for Glocks that fits over part of the frame
They will be shipping at the end of the year. I have not seen one yet, but have heard they change the grip angle slightly so it is more like a 1911...
Re Lasers in general...(for me, ymmv)
Faster from low ready to first shot (since you just flick the laser up), about .1 to .2 seconds faster.
Slower from the holster with targets at 7 yards versus flash sight; about .1 to .2 slower.
Great for weird positions/weak hand/disabled limbs/eye problems (kind of like a good hooker

)
Good for tracking moving targets, though I need to more work in this area.
As well as possible deterrence value; they are good for "holding a" BG, e.g. Once BG is face down on the ground, with head turned to side, you put the dot six inches in front of his face and say "See the red dot? Move and it goes on your head!"
For team shooting they make excellent target designators to avoid things like this:
"See the guy with the gun over there by the tree?"
"Which tree?"
"The Douglas Fir between the Oak and the Alder"
<Sounds of incoming rounds...>
"Arrghhh"
"Sh1t"
....
BTW, the laser flashing feature was not done to improve visibility, but to extend battery life, since they have use those tiny cells, but CT has the whole grip to store a battery in.