Ehm - no? Has anyone actually visited the website to begin with?
Since temperament is not fixed, they have several different variations depending on your needs; variations that benefit different keys. Just choose the one that suits your needs. The keys that benefit less don't sound out of tune, or they wouldn't be selling these necks would they? To me guitars sound out of tune already, so any change would be for the better...
From the FAQ, to dispel some stuff written here previously:
"What happens when True Temperament guitars are used with other guitars, bass, piano etc?
Our 12-Tone Equal Temperament versions tune considerably better against keyboards than "ordinary" guitars.
Against other guitars they can highlight the tuning problems which plague "ordinary" guitars - the problems
which True Temperament was developed to solve. The effect is seldom disturbing, however, it manifests itself
as a sort of "chorusing".
Our Well tempered versions work just fine together with "ordinary" instruments. The offsets from Equal
Temper are not so severe that they normally create dissonance. Each Well temperament has its own unique
personality which never sounds "wrong", on the contrary they enrich the musical interplay. One could describe
them as different dialects of the same musical language.
Meantone Blues is a special case, and is not intended for use with instruments in other temperaments. "
I don't mean to sound like an advert, but TT necks make a lot of sense to me.
Since temperament is not fixed, they have several different variations depending on your needs; variations that benefit different keys. Just choose the one that suits your needs. The keys that benefit less don't sound out of tune, or they wouldn't be selling these necks would they? To me guitars sound out of tune already, so any change would be for the better...
From the FAQ, to dispel some stuff written here previously:
"What happens when True Temperament guitars are used with other guitars, bass, piano etc?
Our 12-Tone Equal Temperament versions tune considerably better against keyboards than "ordinary" guitars.
Against other guitars they can highlight the tuning problems which plague "ordinary" guitars - the problems
which True Temperament was developed to solve. The effect is seldom disturbing, however, it manifests itself
as a sort of "chorusing".
Our Well tempered versions work just fine together with "ordinary" instruments. The offsets from Equal
Temper are not so severe that they normally create dissonance. Each Well temperament has its own unique
personality which never sounds "wrong", on the contrary they enrich the musical interplay. One could describe
them as different dialects of the same musical language.
Meantone Blues is a special case, and is not intended for use with instruments in other temperaments. "
I don't mean to sound like an advert, but TT necks make a lot of sense to me.