[afreeman]

What about just looking at this as a pot equity question?

Consider that suited highcards can win two ways: either by making a TPGK hand, or by making a flush or straight. Since the TPGK options aren't worth much (especially in a big field), you're mainly playing these for the straight or flush possibilities.

Assuming that these straight/flush possibilities have a greater-than-proportional share of the pot equity pre-flop, then you would want to get as much money into the pot as possible. I'm not sure where QJs sits along that continuum, but at low stakes, a late position min-raise into a 5-6 handed field doubles the pot size because you probably won't lose any callers.

One concern is that since you've sweetened the pot, other draws will probably stick around longer post-flop. But if you consider QJs a fit-or-fold hand yourself, that isn't really a problem.