I have one of those as well, though of course I installed a heater
cartridge in it years ago
. I don't think I've used it in years. I use
heater cartridges and make custom aluminum cauls for a lot of internal
work like bridge plates. For fret boards and bridges however, I still always
go back to the 250w heat lamp.
The beauty of the heat lamp over solid heaters is how easy and accurately
you can control where heat is applied. Solid heaters like that one will
transfer heat through direct contact or through the air in close proximity.
When dealing with dark woods like ebony and rosewood however, the
light from the heat lamp will turn to heat only in the material itself where
it hits. I keep a drawer of cardboard and aluminum foil cauls for most
bridge and fingerboard shapes, and my trusty roll of metal tape from the
HVAC aisle. I can tape off the seam between the caul and bridge to
protect finish, or around bindings and inlays on fingerboards where I
don't want heat. Simple, cheap, easy, and in my experience more accurate
and controllable than other methods I've tried.
Anyway, if you want to move it I would just heat it with a heat lamp or two
to soften the glue. On a .200" ebony board Titebond will typically soften
in under 2 minutes with the bulb around 1" from the surface. Work in a
thin smooth knife, such as a dulled fillet knife or a palette knife like the
one in the picture above. It should come apart like butter (Titebond is
good for that at least
). If it feels like it's not separating smoothly, put
the heat back on for another minute and go again. When the resins start
bubbling it's usually ready to go. Scrape or plane the surfaces clean,
relocate and reglue.
I assume the neck is not finished yet. Always remember that Nitro is
basically a clear shiny version of gun cotton. Also, if the inlays you have
contain celluloids they can flare up, where other plastics will more likely
brown or melt. I find taping off to around 1/4" of these is usually enough
protection. Shell won't be affected, though the CA glues or epoxies used
to glue it in usually will.