Ok, headed down to DixieLine and got some samples of mdf and fj crown narrow
and wide.
Been playing with the narrow so far. Just did one on the narrow fj that I
could put up and not be totally ashamed of.
Wasn't able to do that with the narrow mdf. A coping saw doesn't seem to be
the best shaping tool to use for the mdf aside from removing bulk waste and
even then there's probably something better. For the fine shaping I bet a
dremel with a tiny rasp would work great.

The saw worked fairly well for the fj and that was fairly straightforward.
I could probably use a blade with more tpi. Am using 20 now. I see that
Rockler sells 32 tpi narrow blades which I'm almost certainly going to have
to use for the maple.

The mdf I played with didn't spring really cleanly either, i.e. it's wall
mating side and ceiling mating side weren't really square. That probably
was a factor in the problems I was having with it. I'll try compound
cutting that sitting flat and see if it has any effect.

I expect the wide crown will be easier finesse wise.

Too bad I can't rent one of those new copemaster things. :P

ml