anyone has experience using the combination of Jinbei YS-A radio triggers with a 580ex? The $12 hot shoe adaptor I'm using to trigger with seems to trigger only like 80% of the time. It was so frustrating when I was doing a shoot last Monday. I changed the batteries to Alkaline fresh ones but still the same problem. They don't fire 100%....Any one has any solutions? Was speaking to a camera shop owner today and there were 2 solutions - get a Nikon SB28 flash (supposedly they work better with hot shoe triggers than the 580ex)/get a Nikon SB800 Flash or try out the Pocket Wizards.