There are several places during the year where the hard hat guys bring their stuff and allow others to try it.
Take a look at this web sites:
NEDEG - The Northeast Diving Equipment Group ! - Home
The NEDEG in Willow Springs - May 2006
There are couple of threads below about our gathering with the North East Diving Equipment Group (NEDEG) at Brownstone Quarry in Portland Connecticut. Just dod a search and you will find them.
The National Association of Vintage Equipment Divers (NAVED) and NEDEG is planning on having another gathering at Brownstone Quarry.