Hi - I have read a fair number of posts on the vexed subject of track cleaning. Is there a consensus? I invested in some Gaugemaster electronic track cleaners. They 'seem' to work quite well, but I am aware that there is still a residue that remains that needs ot be cleaned off. Is this so? And is the Peco cleaning rubber really as terrible as people say? Am I better off using a cloth and meths?