Nine of Charles' 14 career victories have come at Wingatui, three of them coming through yesterday's Charles-trained winner She's Insatiable, who was successful in a rating 75 2200m race.
''She loves this course - and so do I,'' Charles said.
''I think it's the rise combined with the straight. It just seems to suit the style of training that we have.''
Hit The Bit and One For The Money are other runners from the Charles stable to have returned at the head of the field twice at Wingatui while Lakota and Victory Gold have also picked up wins at the roomy track.
She's Insatiable, who has now won four from 29 career starts, showed no ill-effects from racing at Riccarton last week when she finished 12th in a $25,000 open 2000m.
''We'll just sit back and see how she comes through this and make some plans. She's certainly thrived from backing up anyway.''
First win for Drumgold
Drumgold was having his first start in 15 months when he tackled his maiden rivals over 1200m but his fresh state worked a treat as he bounded away to win by a long neck over Gallant Boy.
The St Reims gelding's best result prior to yesterday was a third at Wingatui in December 2012, but his Wingatui trainer, Terry Kennedy, was always prepared to give the 5yr-old some time.
''He's probably been in work for about eight months but he pulled a little muscle up high four months ago so he was on the walker for two months.
''He always showed a lot of ability but he was a big, immature horse. But he's really filled out now and he's got a good brain, so he should go places.''
Kennedy expects Drumgold's campaign to be relatively brief as winter draws closer.
''Funnily enough, he's not that good on the wet tracks, as he's a big-striding horse. He'll probably have one or two more and maybe go out for a spell.''
Change of codes for Cayford
Gerald Cayford is more used to standing for winning photos with pacers and trotters, but he was happy to oblige yesterday with Hughes That Girl.
The Henny Hughes mare picked up her 1400m maiden rivals in the final furlong to win easing down to the line by two lengths, providing the Dunedin businessman with his first winner at Wingatui in 17 years.
Cayford was a part-owner of Icy Rain, who won three races in the mid-1990s, and shares in the ownership of Hughes That Girl with Gary Fyfe.
The mare's trainer, Amber Hoffman, said the 4yr-old had recovered well from her South Island debut at Wingatui on March 24.
''She's been bouncing around all week but I thought she might have needed another run,'' Hoffman said.
''She's done that so easy. I can't believe she did it.''
Hoffman and partner Jonny Cox have co-trained several standardbred winners for Cayford and Fyfe, including Homeforabubbly, Mackenzie Jacob and Scherger Royal, but Hoffman thinks she could convince Cayford to increase his interest in thoroughbreds.
''We might have to get a few more,'' she said.
