Had x number of sessions by laser down there (Brazilian) some month ago.
What's left is VERY little when it showed after quite some time (2 - 3 month).
Most if not all is very thin and white stuff, nothing to compare to "normal" pubes.
When is shows up long enough ( ~1/4" +), I have it waxed these days as laser will have no more effect (it's white). Electrolysis ALSO creates regrowth (and HURTS!!! eish!), so I do the normal girly stuff by having it waxed. Front to back - "le tout".
Lots of GGs go for that (mostly younger, even school girls, bless them heehee :-)
The room is pretty sound proof so we are allowed to yelp (actually scream) when it comes to it. Great relieve to let fly at times, bit like "la petit mort" - at least by the sound of it, heehee.
Also, GRS hair removal requirements if asked at all, would only want the perineum to be de-haired. Since regrowth is a fact of hair roots, I'm not sure this is very sensible IMHO.
When scrotal tissue is used (scrotal/penile inversion) the scrotal skin is shaved so the hair roots are removed for good.
Axelle
PS: happy zapping!