I'm agree TFW should order 4 more 197's until merseytravel get the battery 777 units running, them they can run on the borderlands line. The customers want a Wrexham-liverpool service which only the 777 units can give on this line.
Not that many people want or need to travel between Liverpool and Wrexham via the Borderlands Line - equally there appears to be no journey time saving compared to travelling via Chester. And then you're taking up a path under the Mersey - are there any free paths? And if not who loses out? Chester or West Kirby ? Both of which will have far greater demand for travel into Liverpool than Wrexham.