That's cool... Its a good suggestion that I think will help.

i think what probably happens is you're removing all the loose residual oxidized copper so the contacts have more surface area in 'contact' with the other connector.

But what do I know... <img src="/forums/images/graemlins/wink.gif" alt="" /> I didn't stay at a Holiday Inn Express last night <img src="/forums/images/graemlins/lol.gif" alt="" /> <img src="/forums/images/graemlins/lol.gif" alt="" />

Seriously, if anyone can shed any more light on this please do... cause now the curiousity is piqued. <img src="/forums/images/graemlins/kewl.gif" alt="" />