There are a few areas in davening where each shul has it's own minhag (custom). For example, whether to say Hallel the 1st two nights of Pesach, in shul.
Some shuls have a ritual "committee" that meets frequently to discuss these minhagim and any modifications made to them. Changes to the minhag are decided by a majority vote of the committee members in consultation with the shul's Rav. The Rav acts as the halachic advisor on all issues. Obviously, if the committee votes on something that is against halacha (e.g. - no men have to wear tefillin during weekday Shacharit), he would veto the vote.
Generally, women are not obligated to attend shul to daven. They are also not obligated to daven all the sections of the davening as men are (have to locate supporting sources in O.C.) Thus, my thinking is that having women on the ritual committee making decisions that they are not obligated or fully involved with, and in a sense deciding what the shul minhag should be when they are uninvolved and, perhaps, "uneducated" would seem inappropriate and possibly lead to a "flawed" decision.
Assuming that the committee does not approve of anything anti-halachic, is a woman allowed to be part of the voting decision regarding any changes to the shul's minhag that affects davening itself?
What about "peripheral" shul minhagim such as changing the nusach (Ashkenaz to Sefarad or vice versa; requiring men to wear tefillin during Hol Hamo'ed when previously the shul didn't, and similar decisions?)