I would say that I'm Norwood 4/5. I spoke to a well respected, impartial SMP "expert" over the weekend and he said the likes of HIS, Skalp and Vinci are all the best companies out there and produce similar quality results. I do get why you'd want a specialist SMP company but I think Vinci have been doing SMP since 2009 so plenty of years of experience and in that time have built up a reputation as one of the best. If I wasn't going for Vinci then I probably would fly over to the Manchester Skalp clinic.