IMO, Omlor's article Res Sacramenti obliterated the validity of the NOM. I used to have his book and have read all of his articles many times. Now, one can only find it on True Restoration and they are gouging people for $99...lol...it originally sold for $30.
His anti-una cuм piece was great, too, right up until he tried to answer a few objections. He failed to do so in a convincing manner and that was that. Anyway, good man, great writer whom I pray rests in peace.