The pair have combined for three wins together, including two this season, and the versatile son of Howbaddouwantit will be suited on the softer track at Oamaru after finishing seventh on a dead track at Waimate last month.
''He loves the deep tracks and it was never going to be wet enough for him at Waimate,'' Hannam said.
''If it is puggy and wet enough and it's hard work, he'll definitely handle it.''
Hannam has teamed up with the Lisa Latta-trained gelding in all but one of his nine raceday starts, and loves the 3yr-old's honest efforts.
''He's never run a bad race, even as a 2yr-old. I think he's only been out of the money twice.''
Authentic Paddy is one of several winning chances for Latta as she tries to trim the 10-win gap to premiership leader Michael Pitman, who still leads with 83 wins.
City Chic (race 6) and Miss Lincoln (race 7), both to be ridden by Buddy Lammas, are two of the better Latta hopefuls, but Hannam feels the track should be perfectly suited to Jackson Street (race 5) in the rating 65 1200m.
The No Excuse Needed gelding defied Hannam's opinion of him when he won fresh-up at Waimate on June 28.
''It surprised me. I didn't think it was wet enough for him at Waimate.
''He gallops pretty good on wet tracks at home, so if it's definitely slow he'll be a good chance as well. As long as it's wet and slow, I think he'll be as good as gold.''
A surprise phone call from Paul Richards has given Hannam his strongest ride for the day. Resplendent (race 4) should clear the maiden ranks sooner rather than later and a gear change could make the difference today.
''Paul rung me up to ride the horse as it was a late entry, and with blinkers on, he looks the one to beat in the field.
''The blinkers on for the first time should make him a bit sharper.''
A wide draw should be much more to D'Chapparal's liking in the 2200m maiden, after Hannam told stewards the mare struggled on the worst part of the track at Waimate.
''She was stuck on the inside, and never handled the track at all. It was quite choppy.
''But [Oamaru] dries out pretty quick there. I'm surprised it was a heavy 10. I think it might even get back to an eight.''
Hannam said Waiting (race 7) is due a win shortly, as she keeps putting herself into her races, while Lady Bellevue will be competitive if she handles the track.
Hannam sets himself a goal of hitting 50 wins each season, and he is only four off that mark with three weeks to go in what he described as a ''solid season''.
He earned a group 3 win with Dubai Belle in the Metric Mile at Awapuni in September and two listed wins at Riccarton in April courtesy of Dozintmateranyway and If I Can I Can.
