Although they only get five binds I like the quad 5"s,but not as much as I like the trip 6"s.

AA on the R's
ASW on the T's

Two options:
AA on T-slots, whatever you want on the R-slots: the level 20 duals.
AA on R-slots, Hedgehogs on T-slots: the triple 6.1" with HE and AA rounds.

I prefer the second, as the lvl 20s hit really weak and your spread at-level is really not
good enough to make good use of them.