Well, in case anybody's interested, I finally received my custom Martin. I would have liked to have gone with Taylor, but the lack of options (no torrefied tops, no AP bracing, no thin finish) meant the competitor got my money.
The torrefied top is very nice, I hear a lot of overtone content. The specs are:
Top:
Swiss - Premium FSC (High Altitude) - V.T.S. (Torrefied)
Braces:
Golden Era Shape (Adirondack)
Back and Sides:
Mahogany
Body:
Style 18 (minus vintage toner, tuner washers, pickguard, fretboard side dots)
Authentic Features:
Cloth side strips
Thin finish package
As a comparison to a torrefied Taylor 614CE I played recently, I won't say it's better than the Taylor - in fact, for nice crispy strumming I would prefer the Taylor and for slow, beautiful fingerstyle I prefer the Martin. I really think Taylor should keep up with market demands, however, otherwise it will continue losing customers such as myself as we are only able to buy certain features on their standard series, which may have other features some customers such as myself may not find attractive (e.g. the horizontally wide fretboard inlays on the 600s and 800s instead of simple, non-imposing dots).