A little info first, my chest is crap, I have been hitting it once every seven days on a typical one bodypart per week split with an arms day. I feel that after 3 days since my chest workout, it shrinks or feels like its atrophying. Other body parts I feel the same about, only chest is the worst for progress.
Either:
M - Push
T - legs/light pull
W - rest
TH - Push
F - pull/light legs
Sat & Sun- Rest
or
M - Chest/Tri
T - Back/Bi
W - Shoulders/Traps
TH - Legs
F - OFF
Sat- Chest/Tri
Sun -Back/Bi
Either:
M - Push
T - legs/light pull
W - rest
TH - Push
F - pull/light legs
Sat & Sun- Rest
or
M - Chest/Tri
T - Back/Bi
W - Shoulders/Traps
TH - Legs
F - OFF
Sat- Chest/Tri
Sun -Back/Bi