I haven't actually started on a piece, just using some scraps to experiment with. 
	I was given the impression by posts elsewhere on the net that it could handle up to 9mm/ 3/8" but if 6mm is the limit I will adapt  . 
	I take you point about using period techniques while ideal it increases the price as the volume is low, so I'm trying to find a happy medium to be able to reduce the price.