not sure, swash could get for sure some support from both hast/dps, why not TC for him, then mapping the 2 chanters looks pretty easy since both casts spells very fast , cooldown are fast as well, i can image them with tandem as well, i would say why not to try. Not like i am looking for more mezzing with this combo ;P

chanters can land 3 4 spells before some wiz can even cast 1 so... why not :P