I have to agree with RCKen here...the only way to overcome this, is by learning how many times to flip the prop when priming. Yeah when I'm lazy the day I don't count how many times and then the engine usually starts in reverse. However what I have also found works when you have already started up your engine and it is in reverse, is to "play" with your throttle...A lot of times you will get lucky and the engine will "throw" itself round and spin correctly.