I'm fairly certain that the prices on Garry Dean's site do not reflect the 20% SEMA discount. The gallons normally run $127.99 not $160 unless he's recently almost doubled the price. Version 1 was only $99 a gallon.
I stand corrected. I took a peak at Garry Dean's new sight and it appears the price of IUDJ has went up twice since version one. He's got a nice new site as well.