for teams like chelsea, i buy top names and make sure decent back up is at hand, make sure everything is ok..then i go on holiday the entire season and well.. i won.. a lot..
I randomely start seasons, and then sign the players i want. Then just holiday the whole season and see where i end up with my own tactic. Then if it's good enough i'd probably upload it.
I used to use it in the international friendly breaks. Everytime I did one of my internationals came back with major injuries. Stopped doing it and it's been pretty much a non issue and minor injuries only like bruised head instead of fractured skull. Probably just bad luck but don't dare to tempt fate
dont holiday at all if i do one or two matches a season its a lot, i stopped this from Cm04 when i went on holiday i had bought Robinho and Kaka from Santos when they were still insane wonderkids and i ended up coming back with both of them being bought by other clubs, not cool
i occassionally holiday big matches that i know im most likely going to lose and i always play the easier matches as this gives me a chance to test out my youngsters...