Yes, my apologies Newton Heath, welcome. I agree with your definitions with the slight exception of 'Smoothies'.With us (about 6 miles away!) the term Smoothie was already in use in early 1971 (i.e. late Skinhead but pre-Suedehead) It was a complementary term used for someone in the most up-to-date Skinhead clothes but whose hair was longer - probably collar length, but short at the front , meaning he looked 'smooth' as opposed to the more aggressive appearance of the crop. (some of the girls preferred this look) The term was also used in the context you refer to later, i.e. post Suedehead when lads were growing their hair longer and were moving away from the skinhead look (penny round collars, scoop neck tank tops, maybe even stack heel shoes etc.) I always associate crombies and brollies with 'Suedehead' which were seen in our area late 1971 and early 1972 (the brollies were a very short lived fad, no more than a couple of months in Autumn '71). I only heard people talking about Smoothies as a youth sub-culture on a tiny number of occasions and even then over a short period of time.
So, I was a skinhead late '69 to late '71, evolved into a suedehead late 71 to spring 72 then grew my hair to become a bootboy. I never was a Smoothie, it was a move away from how I saw myself - I still wanted the look of the terraces and hardly ever went to a match in anything else but boots from 1969 -1973. (I was wearing clothes, obviously!)