Caloundra trainer Natalie McCall is hopeful Winston Smurfhill can vindicate her decision to test the former Victorian in city midweek grade at Eagle Farm on Wednesday.

A mix of overconfidence and bad luck has seen Super Effort ridden in contrasting ways in his two starts for the Gerald Ryan and Sterling Alexiou yard so the stable is hoping for a smoother passage at Randwick on Saturday.

Slight gear change for Fastconi works wonders for Waller