Tho I did discuss carbon that's not the only material used other than Merrill-Crowe process. "Winning" means you won out the PM. Lemas is a Sonoran expert metallurgist as well and he says electrowinning the combined PM ore? Will be most gold and silver VALUE not % of either recovery and the added bene of sending off the laden plates or metal to refinery as anti theft. Then the cost of wasted zinc powder expense as slag with reused or recycled cathoids or goes with that also. Could be on site recovered but think not. I believe some giants do own refining centrallly and access from Mex 2 fence in valley to anywhere seems easy . 8