I know the boys from Xtreme very well, they are a good bunch of boys from Lexington, SC. They have Trey there about once a month to train and have a little demo/promotion for BSN.
At the last one they had there were about 25-30 people there while he was training, and the said it was true; he banged out 35 reps w/ the 150s. When I saw that claim I said the same thing (I though they were counting by 2's), and when I talked to Jeff (the owner) he said it was unreal, he just threw them up like nothing...
On a side note, that gym is very bodybuilder/powerlifter friendly...you all know how hard it can be to find a good, clean, old-school gym, and that's exactily what X-treme is...if you're in the area check it out...