Cool. Some of that hardware looks new on the fresh bodies - the Wudtone has really effected the look of the instruments!
If you have reasonably uniform (note for note) samples from each instrument I can run them through the analyzer and get some hardcore data one each result?
Even with more "random" pieces of audio some comparative data can still be gained, but the results will be more generalised.
Can I suggest some double-blind type tests?
Two audio samples from each instrument, comprised typically a "before" and an "after", although throwing in one set of samples that were taken from the same guitar would be funny. These samples could then be published to the group, anonymously labelled as A and B, allowing us to choose our favourite sounds and also take a stab at which we believe is the nitro or Wudtone.
In the late 80's and early 90's I was part of a number of double-blind tests for both CD v. Vinyl and Analogue v. Digital recording. The results were always interesting.