Was thinking recently about an idea Pantman came up with about changing weekly-monthly training (micro) cycles so that every week is devoted to concentrating on just one discipline, with just maintenance on the other two.
Thought this might be the way forward - as long as you can keep up a little work on the other disciplines, partic swimming, so you don't lose technique.
I think I will start doing a 4-week training cycle of the following:
Week1 - SWIM/BIKE
Week2 - BIKE/RUN (with a little swimming tech prac)
Week3 - SWIM/RUN
Week4 - Easy
ANyoen do anythign similar to this already, and does it work?