Thanks for your reply, sounds like everything is normal then?
Just a little worried that the compressor might get tired early (bearing & shaft wear etc) with all that "running continuously" when set at Normal & Cold.
But what I didn't mention was that I was stationary on my drive when I was watching the compressor cutting in & out (Mainly on Max).
Maybe when I am driving around with the airflow coming through the car then the compressor may cycle a little more regulary to save on wear & tear?
Or maybe I am reading too much into this!