I dont think there is two kinds of MS careers at all. I started watching F1 a long time before MS entered the sport, and I can tell you for one that MS was THE talking point in 1991-93.
I know, I was around myself, having watched F1 since the Monaco GP 1970. He was the hot new prospect back in 1991-93.
The two different kinds of the Schumacher years refers to the fact, that from 1994 - 2004 and in 2006 the regs played particularily to Michael´s strength: refuelling, low fuel loads, short stints, sprint type racing, frequent possibility to change the tyres, that Michael is very abrasive with, especially on the rear tyres.
The whole thing has been discussed one or two pages back in this thread.
Whenever longer stints, heavier fuel loads, less opportunity to change tyres etc. were in the mix, Michael was still very good, but not exceptional. See 2005, 2010 as well as the early years.
MS has also started to downplay the possibility of things getting better for him from Barcelona onwards:http://en.espnf1.com...tory/15686.html
Clever move, if he gets sizably better from Barcelona onwards it will be a nice surprise, if not he wants to take cover already in case of another public outcry. Something neither he nor Mercedes want to have.
Things are still in the balance for him, it could go this way or that way, yet the stakes are high.