(23 Apr 2022, 9:02 pm)L469 YVK wrote The original Pronto B7TLs seem better reliability wise! Those B5TLs need to come off given they could barely hack two years on the X9/X10. X70/X71/X72 would be better suited for them with Enviros covering the evening & Sunday boards on the X30/X72.But will E400's be able to do those hills. I mean they seem to be handling the A19 okay.
I don't see E400's going onto X21. I just don't think GNE will do it