Well ok but.....
1/ we are not Test Pilots
2/ keep it simple
3/ follow your company SOP's with regards to selecting TOGA during De-Rated thrust T/O's etc
4/ if you make up your own rules and get away with it then lucky you, if you don't then expect a lot of sh** to come raining down on you from high up
5/ if that means delaying T/O for 4 mins while you re do the numbers then so be it........
Remember that if you start operating outside the normal green band SOP's then mistakes can and do happen. You do so at you own peril no matter how simple it may seem at the time.
Basically if you stuff up your Balls are theirs.....
