(20 Oct 2021, 7:08 pm)L469 YVK wrote If another E400MMC was available, would  extending the X30/X31 (1ph) not have been a better option?

I haven't looked at the rotas but I could imagine the extra hour could push the whole rota very close to the limit of driving hours. Believe it's about 4 hours currently with it's interworking pattern. Also the X30 doesn't go in and then go back out as an X30.