Well, to be honest no I have not used this exact method, although I have put some autosol on a left over piece of leather once with good results. However, the principle has and is used all the time - anything that polishes contains abrasive, and brasso is no different. The trick is then to embed that abrasive in something benign so that you can hone on it. You see people using pasted balsa as strops, pasted strops, why not pasted MDF?

Glad to hear it gives a good result. Your razors must have just needed a touch up - I cannot imagine starting from scratch with Brasso! :eek

James.