I have removed the head from the mold, and it seems to of come out well. It certainly took a bit of effort getting it out, and I was worried about ripping it if I pulled it too hard, nut silicone is a fairly stretchy and sturdy material, so it was fine in the end. A Copley bit will need to be tided up dur to the air bubbles in the mold but there easy to fix. Overall, really pleased with how it came out