Nah, the underside of the top piece will be black. If you look at the last pic you'll see that I didn't veneer the whole top of the top piece either. After the upper cabinet is assembled only the 3/4" or so around the outside of the riser can be seen. It's just too much work to finish all that area that will never be visible again, so I did a 3" area around the edge. I wasn't worried about the panel cupping, so the bottom will be flat black.
A LOT of this work wouldn't be necessary at all if I was working with Walnut or Cherry or whatever plywood. But if a guy wants something a little different, like Mahogany or Zebrawood or Teak or something that's not commonly available in plywood then he's gotta roll his own, so to speak. Works for me, I'll probably have the only Mahogany Belle on the planet.
haud bonus res mos vado impunitus
'59 HF-81, updated.
'60 Klipschorns Lacquered Mahogany w/DIY matching center Belle '04 Sony 333ES
'60 Scott 222C (now sold to Oregon 4/2010)
DIY LaScalas w/DIY AL Klappenberger crossovers
Nakamichi MB-1s CDP
'77 Heresy, original owner with TEAC tripath chipamp
added 6/05: '75 Cornwalls CWO with SI chipamp, Cornwalls now sold to Kauai, Hawaii, successfully shipped FEDEX 2 day air. :)