"He has been with me for six years," Nicholson said. "He used to be a jockey and he trained a few and used to train in partnership for a while with Jim Wallace.
Guise had been with Tavistock eight-year-old gelding Nymph Monte from the very beginning of his career and he has been a constant companion to the horse, strapping him to 10 victories, including two at stakes level.
"He has been with Nymph Monte from day dot, he was his favourite horse," Nicholson said.
"He rode him right through from breaking in time and he always strapped him wherever he went, he loved him."
While the week started on the worst possible note, Nicholson is hoping Nymph Monte can end it on a high, in honour of Guise.
"It would be great to win in Guisey's honour. He will be there with him on Saturday in spirit."
Nicholson is happy with Nymph Monte and believes he has improved since his eighth-placing in the Egmont Cup (2100m) at Hawera earlier this month.
"I wasn't too disappointed with his last start at Hawera," he said. "It was a nice run and it wasn't his main goal. He has improved out of that run.
"He does like Awapuni and hopefully we get a bit of luck. Barrier eight is near perfect for him. He can slot in wherever he wants to and if the track (rated a Soft7 on Wednesday morning) came back a point or two that would be nice, but the track won't be an issue." – NZ Racing Desk