If you had a modular handguard system, would you mount your light on the strong side rail, or underbarrel? Why or why not? Advantages/disadvantages? Assume the light has a tape switch so switch location is not an issue.

All my feeble mind can come up with on it's own is that I like the ambi nature of the underbarrel location, but I also like the strong side location for keeping the light out of the dirt and away from support side cover.

Thanks!