This may be one of those unanswerable questions but, i would like to ball park it as well as possible. I have a local urban miner who has moved to a condo and can not process his recovered flakes. He offered them to me 4g for $40. I have not processed my 20 gs yet so I don't know what to expect as a loss in Harold's wash process which I want to wait until enough to yield 1oz or better before I process. So I need a # to shoot for. Would any one advise me with ball park % of loss in the wash and melt process. Thanks.