Just glue plastic to edge of P4 all the way around!!! What this should say is get glue everywhere, glue your hand to the bench and cover the mahogany in glue!
Next step glue two pieces of mahogany together with the plastic in the middle...as soon as I read this I grabbed a beer and went to watch TV.
Not liking this at all, tried thin glue and the medium. Medium is too thick and the thin runs everywhere. Guess I will read all the builds again for tips but from what I remember no one indicated this is pain to do?