Actually, there has been some discussion of the deprecation of the "duration" style meter at
https://github.com/AMEE/AMON/issues/4 .
I've suggested we move that discussion to here, though.
For AMON 2.0, the "duration" style meter will be deprecated, as this has already been coded in the standard and the AMEE API, however, if there is a real need for duration style measurements (especially with regards to pulse readings) then we can always add support back into the standard for AMON 3.0....