RJC manager Eilon Kennet told JC Sport: "The Masters are a great bunch of guys who make up for their ever reducing pace with sheer enthusiasm.
"You would have thought that spending a cold, windy and inclement Sunday morning at Fairlop, would no longer be a very attractive proposition, but the lure of another shot to glory in the National Cup was just too compelling.
"The conditions were awful and the pitch was just as bad, a real leveller. However, we knew that it would just be a matter of time, before the Masters would start to struggle with our pace, and that's exactly how it panned out.
"With a final score of 4-1, it was always comfortable for us, but still respectable enough for the proud Dads to tell their sons and daughters of another great adventure over the Sunday roast, as opposed to the Sunday roasting they had been expecting. Oh the beautiful game!"
Masters boss Daniel Collins told JC Sport: "The Masters side can certainly hold the heads up and did their league proud against a very good Redbridge side. Good luck to them in the next round."