Can someone please tell me what is going on here? Doesnt happen with every shot, but I would say one out of 3 come out like this. This the setup, d90 in manual using pocket wizards to fire an sb900 and an sb700 in su-4 mode. Narrowed it down to be coming from the sb900. I tried a different body and it had the same results. turned off the sb700 and still had the same results. I did find the f stop on the camera did not match the f stop on the flash? Also the zoom and the camera and flash with not set the same, would either of those things matter?