sorry for double post, the only ones that come to mind are the 5770/5850/5870 vapor-x's that had shortened pcb's and they were the worst of any made cards. Sapphire had to recall almost all their cards after the shortened pcb failed on them.
like I said, getting a reference pcb'd vers is much easier to integrate into a full cover block. EK and other block makers usually sign up to make full cover blocks, but when customer demands seem heavy on their wallets(for manufacturing+profits), they scrap the idea.