I am buying silver solder for the first time in order to solder some small brass components. I want to buy .032 dia, I think, and I will use flux per a suggestion on another post shown here... http://sra-solder.com/product.php/6073/96 I was going to buy the solder from the same supplier shown here... http://sra-solder.com/product.php/6154/90 I am not sure just how much a Troy once is though. I googled it and it seems like almost a pound or so - is that a decent amount. They only show a little bit in the picture. How far will a troy once go?