Personally, I don't think that even an above average athlete should lift chest and shoulders in the same day. Trevor Smith also used a similar split, and in an article posted on T-Nation, the writer wrote, "Trevor trained chest and shoulders/triceps on consecutive days. While it obviously worked for him, I feel that the average trainee needs more rest since these muscles are overlapping."
I have been using Dorian Yates's split and have loved every minute of it, I have posted his split below:
Dorian Yates Split
Monday: chest & biceps Tuesday: lower body Wednesday: OFF Thursday: back & rear deltoids Friday: OFF Saturday: shoulders & triceps Sunday: OFF
Wow this split is most definitely game changing. I think this masterpiece should henceforth be known to man as The Levrone Split (tm). I mean the man's a genius, this is TOTALLY gonna change the way people train. I can see it 10 years from now we're all gonna be looking back at this day and say: Wow, how could we have been so stupid has to NOT train with The Levrone Split(tm), I mean seriously?
Unfortunately, CT chose not to add Trevor's thoughts on the matter...
Anyway... Training chest one day and delts+tris the day after is no problem unless you go crazy with the volume... I don't do it anymore, but it works just fine.
That is just one of dorian's splits (the one he used last I think).
Another one of his is Chest, delts, tris legs off back, bis continue cycle off off
Chest+Delts+Tris in the same day only works well if you a) don't do any heavy pressing for tris b) go low in volume c) avoid presses for delts maybe d) make good use of the smith machine and other machines to keep the stabilization problems at bay after your free-weight work...
You could also just do a 3-way like the one mentioned above (yates 3-way) or this one:
Chest+Back(+traps if you do no deadlifting or rack pulling here) Legs+Abs Delts+Arms (order depends on exercise selection... Free-weight CGP always goes first, for example)
This is the kind of thread that makes my head want to explode! there is nothing radical or wierd about this split anf it is far from uncommon, it is a time tested split used successfully by alot of people.
having said that there are always variable but since know one is anyone except themselves only your own persoanl experiance will dictate whether you like or find such a split productive.
For every given split you can argue pros and cons sometimes I think the majority waste so much energy doing so had they just applied that to their training they might just find the majic lay in the effort and not the split.