Yeah, I knew that. Not sure in which dimensions it's going to shrink though? I guess that's something you find out the hard way!
I *believe* that fine silver is softer and more malleable than sterling - the extra 7% copper content makes sterling more serviceable. Hence why I figured sterling would be better than fine.
I also believe (from a long past discussion with Steve (trapper) that you are not allowed to hallmark your silver unless you jump through hoops of fire with the London Assizes office. So to go to all that expense and effort only to sell the final product as 'white metal' seems a bit dubious. Just a thought ...