Hi Dennis,
Think i have that milling head close enough after much messing. You were bang on, it was leaning back too far, i shimmed it a bit and then it was too far forward and on it went until my brain opted for the 'close enough is good enough' approach. Think it is all too flexible to get any better, feels smooth to the touch now so better than before.
Haha, i kept moving the column to get the side to side true too, more and more until i could see the head was no longer straight to the column, only then did i realise the 0 degree striker bolt was loose from the factory, duh!
Thanks for pointing this out before i messed up a more important surface, much obliged
Kind regards
Ade