Thanks for the advice guys. The Mark X is a little obscure these days so it's hard to find specifics on what to do for lubrication, etc.. I bought the Ronsonol and although I was sceptical (I've never noticed a residue left over from it and yes I used to smoke). It was cheap so what the hay.. The trigger feels much smoother now. Unless I hear otherwise for this trigger, all is well.
"If someone has a gun and is trying to kill you, it would be reasonable to shoot back with your own gun." The Dalai Llama (5/15/01, The Seattle Times)
"That rifle on the wall of the labourer's cottage or working class flat is the symbol of democracy. It is our job to see that it stays there." George Orwell