Out of curiosity, I tried floating some G+ resin (supposedly the same formula as the Peachy Juice) on top of salt water and I didn't use nearly enough salt... The results were... Unfortunate. And so I panicked and dumped in more salt, which kind of mixed into the resin but didn't dissolve. (weighing it down at the bottom of the water even more, it seems) Then I mixed it all up, hoping to separate the salt from resin and cause the resin to surface when it settled out.

It ended up being a great big mess, and I pretty much left it in the sun to cure for easy cleaning. Ended up with an ugly combination of resin chunks and salt splotches all over my work tray, thankfully not too much wasted resin. (and the cured resin came off everything nice and easy, thanks to the coating of salt on the outside of it.)

Clearly, the amount of salt to water needed will be a pretty important thing to the build instructions. (if not already in there)