After ditching my Nikon, I started to shoot some studio shots with my Olympus OM-D E-M1 recently and I get the curtain in the shot way too frequently. I'm using PW III's as trigger and receiver along with a Nikon SB910. Both PW III's are set to the same channel and the SB910 is in full manual mode. The camera itself is full manual and the shutter is currently set at 1/160, well above the minimum sync speed. Both shots below were taken within ten seconds of each other. This happens all too frequently, where one shot clearly has the curtain in the shot and the other is fine. If I were to keep shooting, this normally takes place somewhere in the 20-25% vicinity. Have other people experience something similar using off camera flash units?