I give trying to use the freeze plugs. I have lost one and finally after hammering the 2nd plug flew back and hit me in the eye...well in my glasses. I'm through with that. I saw @Spook50 and some others had nifty block off plates. I have looked but outside of buying a whole kit from Lerms I can't find a plate. Is this something I am going to have to try and fabricate out of aluminum or something?