I don't mean to derail the thread, but I do think the subject is pertinent, so I will continue until it becomes plain it is unwelcome.
Jack, I'm very confused. You profess to adhere to the WCF, which clearly states that the position of these "fine Baptists" is "great sin", and yet you find it more amenable (but not convenient) to attach yourself to their body rather than one of your own denomination, in which you are an Ordained Officer? That makes absolutely no sense.
Does the sin of others only matter if it personally affects you? Their sin of rejecting proper sacramentology is only an issue if you unexpectedly wind up with a covenant child who needs baptizing? What about all the other children in that congregation? Are they covenant children or not, according to your beliefs? I'd really like to hear the answer to that question, because if they are, you are particpating in sin against them by supporting a group that denies them the benefits of the sacrament. If you believe they are not, why are you maintaining your membership at a Church where I am sure you took vows to assist in the Christian upbringing of covenant children in the nurture and admonition of the Lord? That is even more confusing.
You're a very nice and peaceable fellow, Jack, but this sort of 'cafeteria christianity' is precisely the attitude that prevails to such detriment to the Church today. The truth is not a smorgasbord from which we may choose this and reject that. Two opposing positions can either both be wrong, one right and one wrong, but never both right. These 'fine Baptists' are either right, are engaged in "great sin", or something else entirely. Which is it, brother?