Ceramic, uncovered and not wax-potted?

[Murax]

Please help me!!! I wanna change the Gotoh humbuckers from a japanese 1985 "Sanox" to something really powerful.
The guitar is a neck-thru-body superstrat: the neck is a 5 ply maple/mahogany/maple/mahogany/maple,
The body is quite light made of alder or ash (i dunno), rosewood fingerboard, string thru body, brass nut, brass/stainless steel saddles Hipshot bridge, Schaller locking tuners with the fathead in the back of the headstock. Stringed 11/56
I pulled off all the tone and volume pots to have no hi freq filters from them. There's a phase/out of phase switch, an on/off switch instead of the volume and 2 coil tap switches (that maybe i will pull off). The control cavity is being copper shielded.
 
I'm in search of the heaviest and loudest passive pickups possible, i love when the guitar goes in feedback fast. I do noise, heavy/punk and experimental. i'd like to have endless sustain and fast response at the same time and a scary distortion.
I'm thinking about the Warpig calibrated set, (ceramic and uncovered for more output, but i like the raw/aged nickel covers a lot), or a Nailbomb for the neck and a Warpig for the bridge, just to have two more different sounds. I do love both Nailbomb and Sabbath eheheh.
Is it possible to not have the wax potting inside the pickups? What can happen without wax? They go faster in feedback? Please tell me what do you think about it and what kind of pickup your suggest. Every help will be very appreciate.
Thank you!!!

Murax

[Tellboy]

It is possible to have no wax potting, just indicate when ordering - BKP are great at meeting customers' special requirements. I have a non-wax potted set of Mules with aged nickel covers in my Les Paul. I love them - they tend to be a bit 'hairier' and more prone to feedback than wax potted pups but great sound.

[Nolly]

Yes, you will find the unpotted pickups will feedback pretty much as soon as you stop playing. Can be hard to control but if that's what you want then it should be perfect. Leaving the pickups unpotted tends to yield a broader and more open sound.
Tim also can do lacquer potting, which doesn't permeate so far into the wind - essentially it's a halfway house between potted and unpotted.

[Doadman]

The 'halfway house' option would be well worth considering as something as powerful as a Warpig really will be a beast to control without potting of some sort.