 Consequently, these six AM cars were set for 850 Amperes current load rather than the normal 650, and often the trailing motor car would be cut-out whilst starting a train to avoid excessive jolting.These motor-pairs were also occasionally used for goods trains, and sometimes an ABM would be substituted for the AM car.In the original electrification plan a group of ten single-unit, double-ended motor cars were proposed for use on the St Kilda and Port Melbourne lines during lower-patronage periods.