BOSE-X
Quote- When you are flaring and about 3' from the runway, just about to land, when the nose wheel touches down, does it castor and if so do you have to control it .
Why do you just read the bits of a post that supports your thinking on the issue?, clearly the guy has failed to understand if the NLG is Centers, Castors or has to be steered as it touches down. this looks like poor understanding of the system and hence poor instruction because the instructor has failed to check if the guy knows the system.
It's all about quality control, teach, practice and then check.