Well I'll try two more things then de-materialize, here:
1) I like my guitars to be as
different from each other as possible, because they bring out different kinds of music and seem suited for different playing styles - otherwise, why even have
two, much less... well, you know.
If I had a pile of warm round fat-sounding guitars, I'd
want a twank-tone as a contrast (it may record very well....)
2) It takes me at least six months to figure what a guitar
wants to do, because wood is so different - you could try putting all your other guitars in the closet and forcing yourself to play the twanker for a month of your practice routine, and see if it's still offending you... many, many people play very bright guitars and use it as a starting point (the Tele guys - Gatton/Buchanan/Gill/Volkaert/Mason/etc., Jeff Beck, on and on.
3) If it remains insoluble, try some GHS "GB-LOWS" on it, tuned to DGCFAD. They're 11-53's specially designed for low tunings, they do something to the cores of the wound strings. I had to use them for several months on what eventually became my #1 guitar, till I rewired it (twice) and got the tonal issues settled out - a quarter-sawn boatneck with ebony board + Lawrence pickups is plenty bright, ahem. I still use "Eric Johnson" nickle strings on it, 11-52 because it need a fair amount of string to shake all that wood around. At the right places, they're only a little more than normals, unlike the Santanas or high-toney "jazz" strings.
http://www.sweetwiter.com/store/detail/REJM/
(HEY - that's supposed to be SWEET + WATER, but this silly porn scanner is removing the T + WAT part.! :cool01: you have to fix the "twit" part.)
4) OR try some medium 12-56's or so tuned to Eb. A lot of tonal issues can be settled with strings, as you know - the 1st try at nickles got you halfway there.
:confused4
HaHa I can't count.