I use a rigid 442 but vary between control, counter, attacking and standard. My slider settings are also slightly different for each and I have various shouts I use based on the opposition I am facing, and where. Another reason I do not think it is due to my tactic becoming stale is that I have a 34 year old target man that is in every way inferior to my number 1, but he is scoring when I play him. I also have a **** poacher that seems to score over my better one.
Anyway, my poacher broke his dry spell on the last game of the season which secured me the title and ergo promotion. I hope it doesn't carry into next season though. I'll keep in mind dropping them to the reserves for the future.
Thanks.