The way I see it masking is no big deal.
I am currently a PA resident, been fully vaccinated for 3 months now. When I don't have to wear a mask I don't. When I still need to wear a mask (in some businesses and on Amtrak) I still do. Either way, I maintain social distancing (not as much as the pandemic) but still prefer some space.
I will abide by whatever the rules are to attend the meet. If the organizers want folks to wear masks (maybe for the benefit of other members) I will do so. In that's the case, I will not whine about it.
My sense is that by October it likely will not be an issue. I suspect by that time almost anyone who wants a vaccine (including children) will be vaccinated.
Jim