If it is your own aircraft (mine had a 160hp lycoming) then I would pull through forwards. Only however for the first start of the day. It is very simple really, if there is some form of restriction in the movement that causes damage on start then the repair comes out of your pocket, or at least the hassle of insurance claims and time without an aircraft. Common sense always dictated that the prop was treated as live with the necessary precations therefore taken. Of course if it is your aircraft and you were the last to start it then you will have checked the mags on shut down so it is highly unlikely that they will have suddenly become live in between. If you are playing at this on subsequent starts then the engine may still be warm and the chance of it firing are higher.