(21 Oct 2021, 5:58 am)S813 FVK wrote Yes. The original kits out of 641-652 got taken out and put in 6043-6048 when moved off the X9/10 iirc.

I can't confirm 100% but sure 641 - 646 still have them in. It was just the ones which moved out of Consett at the time when they we're replaced by the 59 plate older Solo's and sent to Percy Main for the W1/W3/333 contracts.