Over the last little while came up with a plan to cover all the cables and ducts, etc. between the rear seats, minimising the form to leave room for human buttocks back there...
Hot glue together bits and bobs of foam. Against my better judgment I actually include a bit of the dodgy florist foam I inherited from Drew Chaplin, the fist bit that has made it to the airplane! Needed it for a tricky-to-shape transistion.
Pull it off again, taped up the surrounds, and hot glue it back on, and finish patching all the holes. Add a power-bulge over the fuel tap. Smooth it up a bit, then 3 x UND @ 90/45 overall.