So as i suspected a few weeks back, my sigma 150-500OS has an issue with the OS system...I'm curious what others have experienced as far as the turn around for repairs with sigma...This is the only time of the year that I really really need this lens...I could afford to be out with it for 2-3 weeks....anything more than that will really hurt me...so...when you have an issue with sigma, and you send your lens in...how long before it's back in your hands?

