56091 'Driver Wayne Gaskell' seems to be spending a lot of its time running light engine up and down the WCML. I saw it earlier in the week heading north past Milton Keynes in the company of 60046 'William Wilberforce' heading north, see...
https://www.ontheupfast.com/p/21936chg/30049736338/x60046-56091-11-30-willesden-dc-rail and here it is on its own this time heading south as the 0Z56 10.57 Leicester LIP to Willesden DC Rail Sidings. I am not a fan if light engine photographs and do not go out of my way to digitally capture them however, when it's a Grid I will normally make an exception!