I know I know - old and moldy but I found their contact information as a result of this thread last night.
I've had a 20-ounce version in my hands for the better part of 13 years now and it's still ticking strong. I've been through so many SOs in the same period, I've lost count. I emailed...
I stumbled into this thread yesterday - no idea how anymore. 45 pages later and I'm duly impressed (and slightly cross-eyed). My garage is exactly the same dimensions, also with a stick-built roof but instead of open 2 x 6 stringers, it has "buffalo board" hiding the 16-foot long 2x4 :eyecrazy...