So what is wrong with the xsp? Is it the clear lens cover that screws on the lens barrel end? Would one of the Neewer filters remove it? I'll try tomorrow when it is light out but if this is an issue with the camera and/or FW, I need to know so I can send it back for a replacement/repair.
Have you updated to the new beta firmware? Yaw is much better in the new firmware; also, the new firmware adds an adjustment to yaw speed. There has always been an adjustment available on camera tilt rate.