Last question answered first. No!
A similar system was originally applied to Spitfires, but the other way around! In other words, on Spits, the 'A Scheme' was applied to aircraft with an even number!
However, by late 1941, this practice was abandoned, and only the 'A Scheme' was applied, to both Spit and Hurricane, regardless of Serial Number, although there where still exceptions, and both schemes could still be seen, although rarely, even later in the war. Only photo evidence of a particular subject can determine the actual pattern.
This only applied to single engine fighters, with all other types using the standard AM pattern.
Below is a drawing showing the Hurricane patterns.