Heckler and Koch believes that your trigger-finger should be used only on the trigger; not for turning the light switch on-and-off. This is one of the reasons H&K are the best. With placement of the switch and the remote-switch devise feature, Insight Tech understands this rule very clearly.
Pros: the reason for the design
Cons: none
This review was written in the old system and had content requirements that are different than reviews written today.