Sorry about the late post (work schedule). 'Frequency weapons'-no i've never had the pleasure;about the closest thing i have to that is my Taser. :)
'taser with a laser',it's loads o' fun.
'Catapults'-me and a friend built one years ago,that thing was too much fun.
JWT-wallboard is excessively priced because the market for it has peaked.It should be a lot cheaper in a few months (maybe).Maybe sooner.US GYPSUM is the 'king o' wallboard',my company is a distant second,USG might be cheaper to buy,i haven't done a shopping-comparison of the 2,i'm just guessing that the leader in the industry would have the better price. (of course,this isn't true many of times).