Pete\Clive,
The pistons are 1mm down in the hole. I can't remember the exact pin height but I do know whatever it is, the piston is 1mm below deck height. I know because this was what I ordered and did all of the measuring 45 times This post will undoubtedly start the "the pistons are built wrong, you have no quench, etc, etc". Been there, done that. In any event, they are 1mm below deck so with a 1mm gasket, you'll be closer to 9.7-1 comp ratio with an E88.
Joe