gto:
The short answer is this:
Likely the thing that has given you the most reason to think things through on such a monumental thing, one which is trying at very fundamental level, even at the fellowship itself, is the inclusion or place of children in the covenant. Once these things start to work at you, there really is no going back, so to speak.
I've never been in that situation. I've always been a Pb. But also, I've never been convinced by any of the arguments for Cb. Be that as it may, you have to remember this: what applies to the children of believers must certainly apply to the people who have expressed a true faith in Christ, but are of a different persuasion on baptism. We need to presume the place in the covenant for them too.
So let's say that Pastor Way and myself are opposites; he's never been convinced of Pb arguments, and I've never been convinced of Cb arguments. Nevertheless, he and I are to be very repsectful of each other in the same way that we regard brothers of the same persuasion as brothers. It is intrinsically part of both of our systems of thought.
(It has to be, because that is what keeps us from being persuaded of each other's views on baptism, even if we don't understand that about each other's views. But that's another discussion. )
I would say, don't hide your faith, and don't display it either. Try to maintain the fellowship as much as possible. As it is not threatened by your views, do not be threatened by the status quo beyond measure either. Don't hide the books, unless it is for reasons such as your not being ready to discuss it yet, or such as trepidation that it may cause division. Be open, but don't wear it on your sleeve. And back off if it causes anything detrimental to unity.
But there comes a time when you have to break with those who don't hold to the same baptism position. Its only practical that this happens.
So, the bottom line: as much as it depends on you, don't break the fellowship; as much as it depends on conviction to the truth, you have to follow it with all your heart, and not allow anything to stand in the way of that. You can do both, ideally, by asking for dismissal from your dear fellowship for reasons of conviction, even doing so with tears. But be ready, because the road to Pb is a door-opener in many respects. And in that way it appears relentless. And of itself does not demand that you view non-Pb-ists as non-believers, or as second rate, or as anything other than brothers who are also in the same boat as you, just not able to master all of revelation flawlessly. After all, if you include your children in covenant because God said they are included, then you have to include Cb-ists in the covenant as well, because God said they are included. They have equal status with you in the church. Being more right is no great attribute to boast about, because that is pure grace and it wasn't yours to boast about to begin with.
This will do for openers. I'm sure this will need ironing out and discussion. I'm likely wrong on some things.