Old Smokey,
A 2.5% Gross gradient with 100 feet obstacle clearance is provided in PANS-OPS missed approach procedures.
Yes, but where does this 2.5% gradient with 100' end? As someone else put it, it's the gap between 1,500' and MSA which is the problem: could be 10,000'+ at some airports.
I know the tech. guys have checked a V1 cut up to MSA on takeoff, so I have no problems following the SID or OEI procedure. The same can not be said of the MAP - unless I have my facts wrong about the checking of same. I'm not a performance guru like you so am standing by to be educated...