I actually delved into the pattern after I asked and noticed that it was...
Now I am just debating on whether I should do it flat instead of on the round, just because it means running out and buying a new set of needles otherwise! (actually 2 sets)
Is there a good rule of thumb for intarsia versus Fair Isle? Is it just a matter of how many colour changes there are??
Growing old is mandatory, growing UP is optional!