"I'll be using the short putter. But even if I won here this week, I will use the belly putter at the Masters simply because the greens are so quick over there. But after the Masters, I'll try to use the short putter more regularly," said Els, who switched to the long putter at the end of 2011.
The reigning British Open champion headlines the full-field Asian Tour event alongside Asia's first Major winner Y E Yang of Korea, New Zealand's Michael Campbell and the region's top players including last week's winner Kiradech Aphibarnrat, Thongchai Jaidee, Arnond Vongvanij, Gaganjeet Bhullar and Anirban Lahiri at the immaculate Alpine Golf Resort-Chiangmai presented by PTT.
"It's been slow. I haven't had good results but I'm practising quite a lot. I've played enough of mediocre golf so I'm looking forward to some good golf. It'll be nice to start here," said Els, who last played in Thailand in 2004.
With golf's ruling bodies proposing a ban to the anchored style of putting, Els, who won the British Open with a belly putter last July, arrived in the northern city of Chiangmai with a short putter in his bag.
Leading Japanese stars Tetsuji Hiratsuka, who has won nine times in Asia and Japan, Masanori Kobayashi, last season's Rookie of the Year and Kenichi Kuboya are also tipped to contend in the newest event on the Asian Tour which is celebrating its milestone 10th season this year.