Tom,
Now you have lost me, firstly typing in caps is considered shouting, bold is distinguishing between what is quoted out the 550 manual and what is my own opinion, everybody knows that!!
Secondly,There are advantages to doing what the AFM says. with that statement you went from being sensible to being a cowboy, You yourself said the AFM is the bible, I fly by the AFM, that is what is quoted there. Read post 187 you will see that I have no quibble about the second segment climb issue and I understand that the performance of final segment is always better than second segment. However, you have missed on vital piece of information in your quest to conquer all, the performance is calculated from 400 ft AAL, as stated in the G550 AFM, thats they way I read it.