NP: I found that letter. In a nutshell, I think he is saying that an elokist (why does he spell it with a kuf – isn’t it chol?) is an apikores (but we need not be choshesh about a stam Lubavicher chossid that he is one), a meshichist is not an apikores, but the process arrived at to be a meshichist is so flawed that a meshichist’s judgement cannot be trusted in halachah.
