BT > Foundry > TFE > Kaon under siege > Battle of ilum > D7 > BP I only put BP at last place because of the last boss being way too hard for newly dinged 50´s. Also, the DPS race on bulwark requires some gear aswell. I have completed them all, and IMO, they are all relatively easy and can be done with good players. Still, i advise you to stay out of D7 and BP til you are all decent geared.

I got the same thing, i have over 300 crystals and i bought my lightsaber for 72 commendations after 2 weeks of farming both HM Flashpoints and Eternity vault. And still, the only columi piece is an offhand i got in EV. Been doing TFE everyday with the same tank for over 2 weeks. That is 14days + and NEITHER me or the tank (sith jugger and sorc healer) have gotten our columi chestpiece. It has droped trooper/bounty hunter 10times and the rest for smuggler/IA. With that said, in over 14 runs, it hasnt dropped a single chestpiece for EITHER sith inquisitor or sith juggernaut. Im starting to give up hope in getting any gear soon.