Subron 4 is active all year round, We have regular meetings during the "Hard Water" months that are attended by a good portion of the group regularly and we have runs during the summer at least once a month, if not more. Hell, we had inpromptu meets around once a week last summer. As far as interest, I get asked about my boats all the time when I have the out and about, I tell the people about the hobby and direct them to the website to learn more about it. I would proudly display a sticker for the SubCommittee as a whole or even Subron 4 in itself. What could be confusing is that I belong to Subron 4 for the Subcommittee and my current command belongs to the real Subron 4. In Groton this might cause confusion, so the sticker would have to have big print.
When surfaced, the bridge access hatch can be optionally open or shut, however, when submerged it is required to be shut. (Really a no s***t precaution from a procedure in use in the sub fleet today.)