 It was realised that, for a train from Slamannan, the point of convergence with the E&GR would be "after" the point of divergence of the line to Bo'ness, so that a backshunt on the busy E&GR main line would be required.Moreover, the E&GR were now making technical stipulations regarding the composition of wagon wheels, which would be extremely expensive to comply with.The shareholders now decided (on 28 May 1850) to build the "low level line" after all, crossing under the E&GR near Myrehead Farm (later to be known as Manuel).