What are the added options/advantages that the G2 & F19 have over the question I had originally posted? Using Mainly for coin, jewelry & occasional prospecting? Please don't take this the wrong way. This SC is just trying to get the rest of the story. This question is meant so I can better understand so I can research this out further. Thanks very much for the postings, comments received to help with this matter. Co USAF 62-66