Hi zemog59. Thanks for the endorsement it will no doubt help with the sale ;-) Just pullin' your chain a bit ;-)
Seriously though all metals expand and contract with temp changes and with noticeable temp swings my TB does detune somewhat. I believe Jerry Garcia said one time that the detuning issues are what caused him to get away from playing TBs.
However unlike on wood humidity has no effect on aluminum necks. I'm certainly not knocking wood necks, I love 'em! (Have one Alembic guitar and another one 'in the oven' so to speak'.) Just pointing out that humidity should not have any expansion/contraction effect on an aluminum neck. I never have used a Kramer so I can't speak to their performance in varying temps and humidity, but can only say, Yes detuning is a consideration, but I have not experienced so much fret buzz as to render my TB unplayable. The longer the neck the greater the temp effect will be, so perhaps it is more pronounced on basses than guitars.
In the interest of full disclosure I also would say the TBs are also very heavy.
All that being said I have loved owning and playing this guitar and am sorry to be in the position where I need to thin the herd a bit. If you can live with detuning and weight issues I'm confident that this guitar will provide someone else as much enjoyment as it has me. If you are a collector or fan of Michael Sembello there is that bonus as well. I was told, but can't confirm that Michael used this guitar on tour with Stevie Wonder.
Cheers,
Court