[St Charles Owl]

Full back was my favourite position that I ever played. I loved getting forward and took all the corners and set pieces from both sides, being ambifootstrous, but I don't ever recall being caught out of position. You just need a sensible team mate to cover for a few seconds and the fitness and will to get back in position to do your main job  

I was shit at heading though  

I agree and I suppose "getting caught out" is the wrong wording.  If we expect the FBs to get forward and put in crosses then its inevitable that at times they are going to end up high up the field when the other team breaks, that should be expected with our system.  But you are right its about the fitness levels and the adequate cover by others that makes the FBs effective.