I've blogged previously about my long chess break from February to September and how it appears that break did me good. I was messing around with some more Chess Tempo output and decided to graph my non-duplicate accuracy and average solve time by problem rating.
There definitely seems to be about a 3% accuracy increase and 5 second speed increase.
Maybe there is a case for taking regular long breaks with chess playing/training? Recently I came up with the idea of breaking my chess into seasons, just like sports.
Off season: Do nothing (maybe light annotated games reading and some Bain level tactics)
Pre-season: Lots of new hard training (Yusupov, non-duplicate CT problems), lots of reading and LTC training games at ICC.
In-season: Lots of OTB, "maintenance" training only (just keeping up with repetitions?)
So how long should each phase be?