I am NOT a bubblehead, but I spent near 20 years working on them, either in Groton, Charleston, or, on occasion, in LaMaddalena Italy and Guam.
I worked periscopes, masts and antennas on boomers, ancient (41 for freedom class) all the way to Ohio new, and fast attacks, from the Nautilus to the Sea Wolf...
Only been underway on them twice (I'm good with that...)