My experience is, Ive only gotten drops when Ive used Melee chars for DPS and out of 5 or 6 runs, Managed to get 4 drops with melee, No honor also as no Bush on them chars.... I know odd but I like how they run.....
Then Ive used my tamer, Twice with just Luck ring/brace and luck tali and not got no drop, lots of Legendaries tho, Then last time I went on tamer had full Luck suit 2200+ and no drop either, and a few less legendaries than with no luck..... A bit odd, I guess its RNG related....
I do find the more I am doing them, the quicker and better its going, I am noticing and also probably somewhere on another post, Only way to get a drop is to hit the end boss..........But!!! On one run with the Guildies, one member did zero damage and didnt really heal anyone as he was AFK for RL and he got a drop....... Please someone explain this.... ehheheehe
To the person taht didnt get a drop yet, Just keep trying. maybe change char or build spec, look at suit, SDI/DI, slayers... the whole lot. Its rather odd you havnt had a drop yet.....