i know from my knowledge i use all of the time i am not "in season" to improve at aspects that i need to improve on. The summer will be dedicated to hypertrophy training because i feel i need to add some mass to my lean thin frame. I realize that i need to start my olympic lifting earlier in the season because it would be nice to see good results earlier into the season.
it all depends on what you need to improve on. focus on your weaknesses.