That's broadly correct, but in the case of the 0855 INV-KYL, the conductor works the 1206 back but the driver has a just over two hour break in Kyle and works the 1346 back. The 1206 is driven by a Kyle driver who then works back on the 1754 ex Inverness.
Back to the Far North, what do the Wick crews do during the current three week blockade? Are they forced to take three weeks of their holiday allowance?