When I carried a revolver as a duty weapon I had a model 38 air weight on inside of left ankle, in the winter I had model 60 in my right front jacket pocket in addition to the 4inch in a duty holster.

I carried a M60, then a 642 in an ankle holster for my support hand access many years while doing U/C sit-downs Easy to access while in a car, too. I carried AIWB for my primary.

Recently started carrying a BUG in an ankle holster, mostly for easier access when driving. Originally got it to try it out, maybe for occasional use, but it's so easy to carry I just started carrying it all the time. Wouldn't want to carry a primary gun that way, though.

FYI, I carry a 642 in a Wilderness Tactical Renegade elastic ankle holster, nondominant/inside.

Also, not LE.