I had it on my 6280, have it on my 6360, and will keep it.
It's shocking to see how many officers remove this simple yet ingenious little piece of plastic. Even more shocking are the ridiculous reasons.
For those of you who remove it, I recommend doing some actual hands on training in gun retention. Have someone try to take your gun with and without the hood. I've found that the hood guard really throws a wrench into the plans of anyone trying to take your gun. Without the hood guard, it's relatively easy to rotate the hood out of the way from anywhere. The guard adds a whole new dimension of difficulty to this task. Even a fellow officer who knows the ALS holster system inside and out, has trouble defeating the simple guard.
If your justification for removing it is that you can't get to your gun with both hands, again, train more. If you're in a situation where you need to get your gun with your off-hand, then you're in a BAD situation. This is no time to leisurely reach over and try to smoothly go through the motions of drawing your gun. The first thing you should do is grab your belt and rotate it about 90 degrees to the fronts towards your off-hand. It will give you a wedgie, your holster will probably stab you in the junk, but you will be able to manipulate your holster just fine. If you're in this situation, I doubt you'll even notice the discomfort. Once the gun is where it needs to be in this situation, I doubt you'll have any trouble getting your gun.