There is an old French custom in some Sephardic communities to have families stand together under the tallit during birkat kohanim, which implies ignoring the mechitza specifically at this time. We have been asked whether we would allow that over the chagim. What would you advise?
You need to maintain separation of the genders during birkat kohanim, just like the rest of davening.
Kevod HaRav, do concepts like gud asik mechitztah1 and lavud2 work for mechitzot in shul? It appears that there will be a six inch gap between a section of our new mechitza and the next section. It is not in an area that is highly visible—only a few people sitting in one spot would notice it. Is this a problem?