The Railways then suggested that higher utilisation of the rebuilt "Silver Star" cars would be achieved by using them on both night and day services on the NIMT allowing "Silver Fern" railcars, to be redeployed on other routes. In 1985 Minister of Railways, Richard Prebble delayed a decision, and—with the full expected cost of removing the blue asbestos and reconstructing the train having reached $20million—cancelled the conversion in line with the Booz Allen Report, which found modern railcar train-sets vastly more economical than small locomotive-hauled trains. By 1986, the NZR general manager considered the conversion of the "Silver Star" into a seating-only train as an uneconomical way of renewing the "Northerner" or "Endeavour" trains.