Well I save every silver I can for cc & aw purposes but since not all silvers are used equally I have a number depending on the class. Archers and soldiers that get used a ton I keep 15~, others like heavies and witches around 10, and less used ones only 5 and use excess to SU my mains. Note that I keep 50% of said numbers if those silvers need themselves to cc for further use on aw