With places in the tour's prestigious million-dollar tournaments at stake, nearly 200 players from around the world signed up for Q-School this year.
Ten spots went to the top finishers at last week's qualifier at Industry Hills Golf Club in Los Angeles, California, and 14 await the participants at Sutera Harbour.
Entrants ranged from hardy pros who have had starts on the PGA and European Tours, to journeymen from the Korea, Japan and Australasian Tours -- as well as fresh-faced students looking for a lucky break.
They also include some OneAsia regulars who lost their cards last year.
"Doing well here can make a big, big difference to the year," said Australian Daniel Fox (right), rueing a poor finish to 2012 that saw him slip out of the top 50 on the Order of Merit and send him back to school.
The winners of both Q-Schools are guaranteed starts at all OneAsia's tournaments in 2013, while those who finish second and third will likely start most events.
Positions are then accorded proportionally between the Malaysian and U.S. Q-Schools.
"Basically, if you get to play the OneAsia events, you are opening yourself up to millions of dollars of prize money over the season," said Fox.
"It would take a lot of mini-tournaments and pro-ams to get close to that."
Fellow Australian Brent McCullough is hoping he can start reaping the rewards of changes he sowed into his game towards the end of last year.
"It wasn't a great end to the year, but it is hard to change your game and expect to do well while you are still making the changes," he said.
"Hopefully the things I have been working on, the things that I'm doing well in practice, will come out on the course."
Some 15 nationalities are represented at both legs of Q-School with a majority of individuals from Korea.
"You can't practice at home (Korea) at the moment because there is too much snow, so coming to Malaysia is good for practice and for playing," said Alan Kim, trying for a OneAsia card for the first time.
"I have been here for nearly ten days, so I hope that all the practice will help me to succeed."
Q-School graduates did particularly well last year, with American Garrett Sapp (6th) finishing in 14th place on the 2012 Order of Merit with earnings of nearly $90,000 from six events.