Not sure I understand why you find this curious - but I may be missing something. 12 o'clock is taken to mean that the tank's barrel is pointing directly ahead over the tank's front armour. 10 o'clock would therefore be at 60 degrees to the front, off the tank's forward left flank, which is pretty well where Harding's Comet was located. I believe the two commanders probably saw each other at the same instant. Given that the 77mm gun had a muzzle velocity of approx 800m/s my maths indicates that at a range of 100m (the distance Harding states he was from F01) it would have taken approx .12 sec for the round to strike. In my money that is instantaneous and would have left absolutely no time for Franzen to manoeuvre. Harding would have had an AP round loaded as he knew a Tiger was in the vicinity and I reckon he would have fired immediately on acquiring the target. I would have done! Where the round struck was probably immaterial as he long as he struck the Tiger fair and square. The forest provided no cover for F01 and the tank was trapped on the road.