(Adds details, quotes) Oct 30 (Reuters) - South Africa's Jaco Van Zyl had his three-shot overnight lead cut to two after the second round of the Turkish Open in Antalya on Friday. Van Zyl, 36, stormed into a seven-shot lead just after the turn but found water twice on the back nine to record his first two bogeys of the week. "It's a field of quality players," Van Zyl told the European Tour website (www.europeantour.com). More...