After 2 months, the son of 2 controllers were stripped and disconnected from them. So I contacted the SAV (Birmingham) who asked me to send them a picture of the problem (something I did on). They then asked me to send them the product to make the exchange. This is more than 2 months since I sent them the levers to the right place (I checked) and they tell me they have received nothing ... To date I have spent 28 2 months of use.