Three times through the more-or-less current state of the game.
Kaithrit Tech-spec (who's been my main since Tarkus came out), Kui-tan Smugglewaifu, Gryvain Merc. Ranged Tech, others melee. Never Lust build. Still using the merc to poke around with the new EXP system, and all of them to look at combat balance and stuff as we go.