Then I'd go with the Superdrol as it has a great glycogen supercompensation effect. You'll make the most out of calories eaten even if you're not eating optimally. I suggest you lay out your planned diet and add one more full meal than you think you need. You don't have to eat shit to bulk, just more of the good stuff you'd normally eat.
I've never tried Superdrol combined with Test (only separately),but I imagine there's at least an additive effect.
My experience with Dbol left me wanting, but I suspect that I wasn't using enough. You could try both Superdrol and Dbol (separately) to see if there is any significant difference in effect.