On May 30, 7:51 am, Mikepier wrote:
Just out of curiousity, how are the outlets/switches going to be laid
out?

Well, since I wrote last, things have changed a little. I originally
thought that I had a 15A circuit that took the following path.

1 - from panel upstairs to attic
2 - over to master bath to outlet (not GFI)
3 - hopped over to 2nd bath outlet (also not GFI)

I thought it ended there. Alas, no. The true path is:
1 - from panel upstairs to attic
2 - over to master bath to outlet (not GFI)
3 - hopped over to 2nd bath outlet (also not GFI)
4 - goes downstairs to 1/2 bath outlet
5 - goes into crawlspace over to outdoor outlet (also not GFI)

So now even if I wire everything upstairs properly on the new 20A
circuit, I have to do separate the downstairs outlets from that
circuit and do something with the downstairs outlets - I guess splice
them into an accessible, not-overloaded, available 15A circuit
downstairs?

Anyway, so to answer your question regarding layout - here's a
possibility.
Circuit #1 (new 20A)
1 - run a new 20A circuit from panel through crawl space, up the
invisible room chute into attic
2 - take this cable over to master bath outlet #1 (new GFI)
3 - take the outgoing load from this GFI outlet to master bath outlet
#2
4 - take the outgoing load from this outlet to 2nd bath outlet
Now Circuit #1 is 20A, 12 AWG and has just three outlets on it, all
GFI protected. As mentioned above I'd have to do something with the 2
downstairs outlets that used to be on this circuit.

Circuit #2 (old 15A)
1 - this currently comes from the panel into the attic and runs to the
master bath outlet. Since I'm wiring these outlets with the new
circuit #1 above, I cut this line and route it to handle the bathroom
light switch, vanity light, and light/fan FOR BOTH UPSTAIRS
BATHROOMS. There will be no heater, which I've read means that I can
use 15A. Some have told me the light/fan needs to be GFI and some
have told me it does not - if it does need to be please tell me the
section of code specifically from NEC. If it needs to be GFI I'm
tempted to put in a GFI breaker instead of messing with mixing the
light fixtures and routing them into Circuit #1.

Circuit #3 (the other old 15A)
1 - this currently comes from the panel into the attic and powers the
whole side of my house (master bedroom, master bath fixtures, 2nd bath
fixtures, 2 closets). Since the bathroom fixtures will be taken care
of by rerouting Circuit #2 above, this circuit will basically just
power my bedroom and closet lights now.