no I didn't bother with mold release. I should have though but it's ok, I've got plenty of usable parts
The last thing I used the resin for was to make resin ice cubes with LEDs in them and put them in a glass. I didn't use any release on the ice cube tray and they popped right out, so I figured this would do the same.
Yea I was amazed as well when it showed up and I actually got to tearing it down. it's very well built and solid