I just ordered the first shipment of silver source material to use for the first round of testing. With the price of silver in FRNs being near a year low at around $11/ounce, now is probably a great time to buy. However, this source for the milled silver has a markup of over 40% above spot. I think its worth it, just to be sure of the quality. There's also additional charges for shipping, so the markup is approximately 50%. Hopefully the markup will be lower for larger orders. I asked the company if they had it in stock, and they said they did - no problem. The person I spoke to did mention that they had heard about others having trouble getting the physical silver though. Anyway, once we receive the stuff, we can do more testing. Maybe we can have product finally shipping by the holiday season. It feels good to be making progress!