[Alex Murphy]

I defer to the posts of others that corrected me; this however, I can answer: apostolic succession requires two things: valid consecration and unity of doctrine. It is possible to consecrate a bishop or even a succession of bishops who drift into heresy overtime. At that point further consecrations cease to be valid.

It will be interesting to read the replies you get to this post.

[Gamecock]

who drift into heresy overtime. Overtime?

I'd say that a lot of heresy was done during overtime. They should have stopped at the end of a normal workday!