For tower duty - let the more mobile person activate the tower. That way you only have to move to the edge of it. (Less distance to run =more DPS)
In my group we have two bards. The one not doing Homing/BrainJack is first priority on Ballistic so mages can mainly just move away and keep casting.

Dreads - Yes Quelling and rotate Convert and Mana Pots to double Flare. (If doing LB3 on 3rd dread it leaves lots of time for CD's since you shouldn't have to touch 3rd Dread)