Max, out of curiosity, why did you need to buy 6 CH sticks (if I'm reading that correctly)?
Just from reading, I've found it to rare to find a person that bought more than 2 (to eventually go all USB without a hassle, usually).
My CH gear is going on a few years... Not as long as many, but every Saitek I ever bought started to seriously wear out between 6-12 months, and the issue I had with that is EVERY new stick (even the same exact model) "feels" different than your last one.
I'd rather pony up the cash for something that should last and work well for a longer time than retrain muscle memory every year, but that's just me.