just plain rotten customer service (and I am trying to be polite). Can't speak for other countries but customer service in the US is in the toilet, it just plain sucks. By the time I get through all the prompts I forget who, or why I called. Talk to a live person, almost unheard of now days, and if
I have heard that micro rotors are not very efficient at winding due to lacking the weight of a full sized rotor. In some ways I can see how this makes sense, in other ways I can't.