The Mage PvP weapons are pure trash. It's true, I'm still using T3 Dagger/T2 Tali and have been for almost 3 years now.
I like the suggestion of Herioic Stats, that's what kept gear such a none factor for a long time. Seperate the PvP out of the PvE and using Herioics and nobody can complain they need to regrind for gear. If you want better PvP gear, you should get it grinding PvP, not doing puzzles in T4.