This one always has me scratching my head...
I have a 2027, too, and blah blah (I've went on about this a ton. Sick of reading myself
) I tune REEEEEAL low, it's mahogany, I use the TZ7... you get the picture. I just can never seem to see the "mud" thing. I don't think my 2027 sounds like a guitar with EMG's or anything, but it always sounds clear and tight to me. Thick, yes. Midrangey in the bridge, boomy and powerful... but always crisp and sweet.
To me, the guitar sounds like Korn's sound in "Untouchables." Go figure, mahogany RG-7's with Dimarzios. Only the TZ7 makes it sound a bit 'middier' sometimes, more like Michael Schenker of Scorpion fame (no surprise, since he used mahogany Gibson's alot, with a middy pickup and amp, right?) Well, make it 75% Korn, and 25% Schenker, and there ya go. But it never seems muddy. In fact, when I read something like this, I scratch my head and think, "Maybe I'm doing something wrong?!" But after a few days of playing and listening, I go right back to thinking everything is perfect!
I dunno... maybe it's just up to the person. Here's some things I think, tho.
1. The 2027/TZ7 with it's "mid" ("mud" to some,
) cuts through a band mix like NONE else. I have a beater 7, basswood body, and that things is HEAVY by itself. In the mix? Bye-Bye! Have to crank the volume to be heard.
2. The Dimarzio's are a lot "snappier" than the stocks. Everybody wants a kick-a$$ bridge pickup, but I think Korn has it right. Those PAF7's seem to be reeeeel nice to mahogany and low tunings. Maybe think about some new pups, Sam. I liked the 2027 stockers OK, (Enough to throw 'em in another guitar) but I like the Dimarzios better. Maybe it'll work for you, and then again, maybe basswood(Drew)/longer scale(Jim Soloway)
3. Heavier gauge strings are an improvement. Lots more "snap". Try that. I use Elixirs, .010 to .068, and it's a real good sound for me. (I bet an even heavier gauge bass string would sound even better.)