Hi, I've been making silver fingerprint jewellery for a few years and after firing use a brass brush to bring up the silver before sanding. The bristles on my brush were getting rather bent so I ordered a new one but when it came the bristles were much softer than on my old one. I was wondering if other people tend to use stiffer or softer brushes? Although the softer is more comfortable to use it didn't seem to bring up the shine as well as the other one. Sometimes I've even wondered if it's really necessary to use the sanding sponges because the stiff brush made the silver so shiny! Any advice would be gratefully received