Absolutely.More 197's aren't needed.
Getting the 756's and 398's in service, and 231's cascaded off the Valleys is what is needed so 197's can be put on the routes they were designated for.
I would say that it could really only be determined if more 197’s are needed once all the other fleets are operating as intended, so that includes the MK4’s and 230’s too.
Then if they were struggling for capacity I’d rather see some more middle cars made and have some of the 2 cars made into 3 cars.