I think that would be an awesome build! Don't know how the Walnut would affect the tone–would be very interesting to try for sure!
I wanted to use my amp and pedals but wasn't set up for it at home. Oddly enough, I went straight from the guitar into Garage Band on my iPhone (thanks to guitarSQUIRELL for mentioning this
cable)
If you have GarageBand here are the settings (kept them because I plan on a Magnet Swap in the Demon, wanted to make sure if my phone dies I can recreate the same tones to show the effect of the Ceramic vs Alnico V)
Clean
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Drive
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I do not know but my gut feeling is that the Mahogany would because the pickups are mounted to the Mahogany. The Les Paul Studios (no Maple Cap) seem to sound and respond differently than a Standard (with a Maple Cap.)
I had the JB+2 Hotrails in a Jackson Soloist (Maple on Alder) that sounded so much better (not good measuring terms I know) than the same set in a LTD Strat (Alder only) BUT there were too many vairables such as Rosewood vs Maple Board, Neck Thru vs Bolt-On, Hardware, etc.