I see you're a fan of the nine so you may appreciate my advise.
I don't use what the great man does, but i've modelled my sound quite closely. I use an
evans clear eq4 on the batter with a thin plastic falam pad and a t-shirt thrown loosley against it. This gives a lot of
attack while retaining the oomph.
My reso is an
evans eq3 which comes with a re-inforced 5" hole. Resonates well and tunes nice and low.
I'll also point out the value of a beater head. The less beater touching the batter the better. I use the
pearl quad beater that came with my eliminators (they are available seperately) the vertically rounded plastic side offers a bright impact and does muffle the head with unnecessary contact.
Maximum
attack, maximum punch. That's what it's about baby.