please help upgrading my crappy pod xt tone!

Yer chunka sounds fine. The single note thing sounds like you have a notch in your upper midrange. I'd use your parametric to find that and fill in the hole. Still lots of players would be happy with that sound. It's all a matter of what you want it to sound like.
 
I think it's pretty phat and juicy. real in your face too. I think we have a keeper on our hands.
 
hahah I have boss mt2!:) and yeah its similar!
the tones are uploaded at customtone.com, just serch for fuge or ekdavid. But as I heard the feedback, they sound different on other guitars:( mine has too much bass, so the tones might be muddy on yours.

nowadays I m experiencing with bigbottom model, I ve got a short clip as a soundcheck:

http://ekdavid.uw.hu/sludge.mp3

(bulb's tone eq-ed to my guitar)