I finally got around to trying the replacement package that was sent to me. Lo and behold, it worked like a charm! I don't know why the first box was defective, I performed the EXACT same procedure as the first time, but with totally different results. After 10 minutes, they started hardening, just like the instructions say. I left them in for 30 min anyway (was listening to music while vacuuming. They hold the earphones in much better than without the custom mold. It also blocks more outside noise. I won't know about how they work under a helmet or for a long time until later. I did wear them about 1.5 hours last night and they seem OK.
Modified my Amazon review accordingly. Now that the product works, not bad for $12!
Picture below:
I was surprised to hear the Radian kits you got were crap, mine worked perfectly...must have been old material.
I posted those kitsup about a year ago, when I bought 4 Kits for like $9 each I think, figuring I might botch one learning how to make them work with moulding in some of my old phones for my music...actually they worked perfect first try, and I've made a couple sets using different phones I had that didn't really fit my ears well with the supplied sized adapters.
here's a little hint;
remove the adapters completly, cut a piece of a stir stick straw about a half inch long, and place it in a position against the speaker end of the phone before moulding the material around it in a "ball", mould the silicone in a tapering tube, completely covering the straw, and sealing it in. Shove them into the ear, and follow the instructions for moulding the rest to seal and fill the ear cup. When they setup, remove them, and trim the end off the moulded tip to expose the sippy straw piece, and use a toothpick slide between the straw and the moulded pice to 'loosen the grip on the straw (you can actually lube the straw sparingly before moulding it in if you want),and make sure the silicone is fully setup before pulling the straw from the mould,
VOILA totally moulded hollow ear canal speakers.....
for the money you simply cannot go wrong, hell, old cheapo headphones and the mould kit...$10 custom plugs.