IIRC Fred called them ho-humbuckers. To each his own, I'm not a huge fan but I do like the sound of them better than Dark Stars. YMMV.
Funny... I never heard the term sludgebuckers until this thread. Just googled it and the only references are by Chromium and Skate Rat on other forums. Way to go, guys!
Can't wait to hear it too myself.But till this day it hasn't even been shipped... (I paid with PayPal the very same day I won the auction, six days ago now)