In-form jockey Glen Boss wasted no time adding to his winning treble at Moonee Valley on Friday night when he landed the opening event at Caulfield on Instructor.Instructor was sent out $2.40 favourite in the Vanguard Derby Plate (2000m) and was given a beautiful one-out and one-back trail before scoring by a half-length from Ulysses ($6.50) with Who's Ya Daddy ($9) a long neck away third.The Pins five-year-old, a half-brother to four-time New Zealand Group One winner and Melbourne Cup placegett

In-form jockey Glen Boss wasted no time adding to his winning treble at Moonee Valley on Friday night when he landed the opening event at Caulfield on Instructor.

Instructor was sent out $2.40 favourite in the Vanguard Derby Plate (2000m) and was given a beautiful one-out and one-back trail before scoring by a half-length from Ulysses ($6.50) with Who's Ya Daddy ($9) a long neck away third.

The Pins five-year-old, a half-brother to four-time New Zealand Group One winner and Melbourne Cup placegetter Xcellent, was beaten a short head by Eskimo Dan in the Group Three Eclipse Stakes (2100m) at Sandown at his previous start.

Saturday's victory gave him seven wins from 16 starts but the gelding is one of 19 horses owner Lloyd Williams will offer at the Magic Millions mixed sale on the Gold Coast on January 19.

He will also offer Publishing, the winner of six races including the 2008 Group Three Standish Handicap and Carlyon Cup.

"He gave me a really good feel," Boss said of Instructor.

"He needs to chase and he kicks and gets there really quick but he's never going to win by a big margin because as soon as he gets there he switches off and starts to wander."

Boss said he would appeal against the suspension incurred at the Valley night meeting for careless riding on one of his winners, Warm Whispers.

He was outed for 10 meetings, including four metropolitan fixtures, from midnight on Tuesday until midnight on December 18.

Trainer John Sadler said the Listed $150,000 Bagot Hcp (2800m) at Flemington in January was "a definite possibility" for Instructor.

"He's not the sort of horse that will run away and win by four or five lengths," he said.

"He's pretty smart, he does only what he has to do."