This is where my mea culpa comes in. I have participated with my typical rhetorical flair in this argument over at the All Too Common Blog. Now I regret doing it. Why argue with some anti-ecumenical Roman Catholic over the finer points of the vague history of sacramental theology? Does it really matter that one bishop somewhere in the Apostolic line "crossed his fingers" when he laid on hands? Even if our sacraments are "invalid", does that mean the Holy Spirit cannot work in the Church?
Something tells me that the Reformer's emphasis on Faith is what's most important here. "Take and eat this in remembrance that Christ died for thee...." Vain is the help of man. Even if our orders are invalid, what would it matter? The Power of God works through the weakness of men if we only believe. "If you only had faith the size of a mustard seed...."
I fell into the RC trap of "sacramental validity" because of my pride mea culpa, mea culpa, mea maxima culpa....
If this doesn't make any sense, it is because I am a sleep-deprived student. Good night and God bless.