There's some mention of 'reduced power'takeoff's in the Metro3 manual..(95%limit i believe)
When 'reduced' takeoff's were first developed there was o general understanding that it wouldn't be set 'less than climb power..To make the cert' requirements??(the a/craft had to meet the climb gradients)..Keeping in mind that the first thing one does,with a fire failure is to select 'power'to the max...
Cheers...