I get you may not want your ex-wife to know full details of your legal strategy, but consider whether her reading roughly how it's going would present problems. e.g., "I need to get to 50/50 within a short period of time, her attorney says only 67/33."
I'm not sure I follow.
She wants to revisit the possibility of 50/50 a year from now, "see how it goes", etc. Why would I agree to that with somebody who has shown no willingness to budge, and continues to imply I am unsafe with my children? I have zero trust that she will change her mind. What I've proposed is we ramp-up to 50/50 in the future, but it must be an agreement to be at 50/50 at some future time. I'm happy to negotiate the timeframe, but I won't kick the can down the road on the fundamental point that we need an agreement to get to 50/50... that's just crossing my fingers that she will change her mindset in the future, and so far, over a year into our situation, after 6 months of counseling to try to get to some base level of trust, she has not budged.