Harmey won the $50,000 group 2 Golden Guitar with Wet My Whistle on Thursday night at Tamworth to continue a flying start to the season for the Nulkaba trainer.

He could land another big win with Straddie, a last-start Country series heat winner at Newcastle, when he contests the $19,999 Menangle final from gate three.

"He was going to the Golden Guitar, but when they put the conditions on, his grade wasn't high enough, so we found that race," Harmey said of the heat win.

"He were lucky as well because he had no trial, but he went good and won pretty well. [Driver] Todd McCarthy's on tomorrow night and the owners are pretty confident so hopefully he runs well, which I think he should. He's a good horse and he's placed in group races."

He also several chances at Newcastle on Saturday night. He believed Major Mondo was his best hope at the meeting, in race seven, a heat of the NSW Rewards Series.

"This is his week," he said.

"He's back down in his own grade. His run was good last week, he came from back in the field and made good ground, so he's a good hope."

He also has leading chances Always A Secret and Western Heir in race four.

"Always A Secret has the advantage there just because of the barrier draw," he said.

Shez Got Bling (race one) and Portalegre (two) are last-start winners for Harmey, while Classy Trim (three) and Choisir Damour (nine) have the benefit of gate one.

At Menangle, Harmey also has Chevrons Reward in race 10. The mare has two wins and five seconds since a distant last at Menangle in August. She also tailed off last in her other Menangle appearance for Harmey.

"She's been racing really well and the draw [in seven] doesn't bother me," he said.

"The issue with her and Menangle bothers me.

"She's raced and beaten horses who have gone to Menangle and competed, but every time I take her there she hasn't gone or she's done things wrong."