Hi, some time ago mentioned some Parker work we were doing (everything these days is a slow process). Specifically an ejector problem. Slide in the forearm had the guide rod broken off.... We have milled out the slide and have made a new guide rod for it and are having some problems assembling the two. Specifically the silver solder that we are using is balling up and not sweating in properly. Does anybody have any ideas as to what we should be using on parts of this nature??