The 32-year-old had the Spanish Open title in his grasp heading into the final stretch in Valencia last weekend but covered his closing five holes in three-over as he stumbled home and missed out on a play-off.
Last season, Warren was in a similar position in the Scottish Open but snatched defeat from the jaws of victory with a ruinous run-in.
The Scot, part of a six-strong home contingent competing at the Blackstone club, secured the last of his two European Tour wins at Gleneagles in 2007 and is keen to learn from his recent harsh lessons as he tries to end his title drought.
"I'd never led a tournament going into the final round before," said Warren, who three-putted the last two greens in Spain as his hopes of victory crumbled. "There's a different pressure involved when you're the one who's being hunted but the more I put myself there, the better I will become at dealing with it. I'm absolutely convinced it's only a matter of time before I get across the finish line in front."
Richie Ramsay, runner-up in Korea last season, will be aiming for another strong title tilt while Scott Jamieson and Stephen Gallacher, both winners on the European Tour this year, bolster the Scottish contingent. Paul Lawrie and Peter Whiteford are also in the line-up.
Meanwhile, Guan Tianlang, the 14-year-old from China who played in all four rounds of the Masters, will compete in the PGA Tour's Zurich Classic in New Orleans.