I recently bought a mountain bike with a Marzocchi Z1 QR20 Fork (2004). I´ve been having trouble keeping the rebound control. I have to readjust the ETA system every time I use my bike and it´s becoming very inconvenient. I may be adjusting it wrong?? Also, when I'm riding and make quick movements or jump the fork makes a clacking sound, like metal hitting metal. Does anyone have any advice? I live in Patagonia, Chile so no one can help me at all. Thanks!