I was advised to use only mild steel when silver soldering which mine was done- i'm not overly confident in the way mine was done - they spun mine down straight and slotted over the original end then silver soldered around the base - they assured me it is fine but i'm not convinced so would like to have it brazed

http://www.ebay.co.uk/itm/6-AN6-06-M...item2a15805e0a