Ah thunderkyss, you jogged my memory, as I mentioned I'd read something on the subject of double sides affecting tone and thought it dubious.
Do your best to make sense of this -
"I ask if the sides of the guitar will be lined with (X wood), he replied no, he'll line them with the same wood as the sides which he normally does.
Apparently the player wanted to control some of the tones given by the (Y wood) b/s that he didn't want... hence the use of (Z wood). The maker went on to say that the guitar really is designed just to the players requests tone-wise".
This extract between customer and maker is from elsewhere and in complete contradiction with whats been said above.