"I have had three or four weeks where little things have set us back," said Reid.
"The latest was a hoof abscess which has been cut out and while he will be back working this week, he has missed work that means he can't race at Alexandra Park this Friday.
"So I can't have him fit enough for the Cup, so the Inters become his main aim now."
That leaves Mach Shard as the only realistic Cup hope trained in the north. He starts in a $25,000 race at Alexandra Park this Friday before using the New Zealand Cup trial at Addington on November 6 as his final lead-up.
Monday's Ashburton meeting is shaping as a crucial Cup week prep, for not only the pacers but the trotters.
The clash of the Cup favourites in the A$50,000 Flying Stakes will go a long way to determining outright favouritism, because while Spankem still deserves that position, he did peak after looking the winner at Addington last Friday.
That was off a 30m handicap and on a sticky track, which he has shown in the past he doesn't enjoy, and he has the luxury of starting off level terms for not only the Cup but almost every race for the rest of the season.
While the Flying Stakes will have a huge impact on how punters view the Cup, the trotting races at Ashburton on Monday may tell a story of their own.
Because new sensation Oscar Bonavena is being allowed to miss the Flying Mile to stick to an intermediate grade trot, suggesting he could also bypass the NZ Trotting Free-For-All on NZ Cup Day and be saved for the standing start of the Dominion three days later.
Sundees Son, the other market dominator for the major trotting races during Cup week, is entered for Monday's Flying Mile.