Ok guys.
Believe it or not, I do think outside the box providing it doesn't go against common sense.
I'm just surprised that the difference in price of training is so different that it actually makes sense to redo 14 exams!!
I almost never took the -400 job when I realised I'd have to read the Ops manual all over again!!!
I guess some people are cut out for studying. For me its a constant struggle.