Some ECS and WCS moves share common names and have similarities. For example, both have tuck turns and underarm turns. But, I think that tuck turns and underarm turns both look and feel quite different when executed in the different dances.
With respect to continuous tuck turns, I think it would be possible to do them in WCS, but I don't recall ever seeing them done, and I wouldn't think to try them because they don't seem to fit the character of WCS.