So i am Scoundrel at rang 59 have played all Speccs and i say Scrapper: it is good as it is, you can still beat other player and you have Utilities Stun, Root, Snare, rupt, Ae mezz and a good Ae for defending objektives, for Teamfight very good. Sawbone: it is fun to heal with a Sawbone, maybe he needs a little push, i think Kolto Cloud needs to be a bit better, and the Hot, maybe not much. You have not the amazing Burstheal, but you are mobile. Dirty Fighting Here i see the only point to buff, the damage is ok, but you have not so much possibility to get upperhand, here Bioware must do something to make this tree an option. This tree also needs an adjustment in energycosts. Scoundrels and Operatives are far away from underpowered but also are not overpowered, the dirty fighting tree needs a little love but the rest is ok.