I have a custom multiscale baritone. It's a 5-piece maple-bubinga-wenge-bubinga-maple neck-through with bubinga wings, wenge top and ebony fretboard. It's string-through construction with sperzel locking tuners (with a custom-made wide one for my fat lowest string muahah).
Coupled with any of black dog, miracle man and aftermath, it's a fantastic sounding axe. Tonnes of sustain, with lots of aggressive mids, punchy but controlled lows and a glassy top end. Unplugged it sounds glorious, full and rich. Plugged in clean it's glassy, sparkly on the top without being harsh, and deep in the bass with a nice mid-push. Up the gain and it gets plenty brutal very very fast, with tight, controllable bass, angry midrange and not overly-harsh highs.
Can you tell I like it? :)
This is my axe, it's made by Wez Venables here in the UK and it's called the Vociferator: