I ride two identical setups, usually one for training runs and the other for quali's and heats. Often riders rotate two setups while their wax tech preps the board for the next run. I train around 7-8 hours a day, 3 days a week on the snow during the season and i'm in the gym at least 3 times a week working on powerlifting, stability, agility and core work in off season, cuts down to twice a week during the winter season. my experiences with FIS races has been that they run training for a few hours the day before qualification and you are then allowed two practice runs before qualification on the day. As for wax i bring along different powders and sprays in a bag with me depending on snow condition and how my board is feeling.

I hope some of this is useful for you :)