Sorted. Checked with plastigage. I used the clevite stuff but found it pretty naff as it's so small. Got some KS stuff (weirdly enough KS also made the original pistons and bearing shells in this engine) which spreads much wider and is easier to interpret.
Pardon the cut on my thumb. Edges on the crankcase are sharp.
Pardon the cut on my thumb. Edges on the crankcase are sharp.