postSem – “from personal experience, it is EXTREMLY important to have the Kallah teacher speak to the chatan or the chatan teacher, as this very personal subject can become very uncomfortable if both sides wherent taught the same information”
Your personal experience Doesn’t make you an expert! If sometimes, most of the time Not, if after the marriage there is a conflict, they should go to their Rov. Hopefully, they can agree on which one to go to. The same as which therapist to go to!