HALLANDALE BEACH, Fla. – Trainer Chuck Simon has been one of the biggest advocates of summer racing on the south Florida circuit for the last two years. And his decision to stay here year-round certainly has paid big dividends this season.Simon saddled his sixth winner from just 17 starters since the Gulfstream meet began April 6 when he sent out J C Monba to capture Saturday’s second race under a nifty, rail-skimming ride by jockey Matthew Rispoli. The victory was the 328th for Simon in a career that began at Churchill Downs in 1999.“Everything we had ran pretty good this winter, and when the tougher horses left, we went from being 15-1 to 3-1 in the same spots,” said Simon. “We have a good crew, and fortunately the owners are realistic about where to place horses, which helps a lot.”Simon has 15 horses stabled at the Palm Meadows training center, including several 2-year-olds, and he hopes to purchase a few more babies at the June sales.“One advantage we do have is training here at Palm Meadows,” said Simon. “The place is awesome, the best training center in America, and I think it’s a huge edge. I can’t imagine why anyone wouldn’t want to be there. They have dirt, turf, and the L-shaped training track. The barns are great, and Gulfstream pays our shipping. It’s a tremendous deal.”The best horse in Simon’s barn is Xaverian, a 5-year-old son of Sky Mesa who comes off a sixth-place finish behind Kaigun in the Grade 2 Pan American. He’s scheduled to run in Saturday’s 1 1/2-mile Gleaming Stakes.“He’s turned into a much better horse since we stretched him out further and since my ace rider, Susan Ditter, started getting on him,” said Simon. “She gets all the credit. I don’t even tell her what to do. She’s really figured him out, has got him happy, and he’s a far better horse now than when we first got him.”