My very firsts stayed soft. I found that I mixed the e-tex imprecisely. You gotta be deadnutz with that stuff. Anyway, I recoated with a more precise mix. The plugs felt rubbery but not sticky, so off to the beach I went. They peeled like bananas!

They still hang in the JakeCave as a reminder not to be sloppy. I mix my e-tex now like I was mixing a bomb. Verrrrryy Carefully.