I think you put in less during the high season because you're supposed to be preparing during the low season so that once you hit the high, you're all ready to compete. During the start of the high season, skaters have already done their program a million times in practice and now it's time to work the kinks out in competition and maintain their level of skating. The high season isn't really used to work on everything everyday; it's more to maintain your level, compete, and make your program as best you can. Rarely ever do skaters learn new things during the high season unless it will go into their program and add more points. A lot of that work is done during the low season so that when the high season comes, they can shine!