chevvron,
Just checked out the latest CAP493, and the 'direction of splatter' is not specified.
Still never found the ICAO definition of 'a splatter' though.
P.S. The EGCC Tapley Meter is right here, in my kitchen. Oh, and Mr. Tapley still makes them…….And they look the same.
Freddies, ignore all this banter. It won't be part of your assessment.