Folks,
CP or equitime points ( in whatever configuration your are in, one out, two out, depressurise etc, calculated with whatever variables are known and applicable) is what it says, the point at which it will take equal time to go to either of two places, on or back or whatever.
Equi-Fuel is the old PNR, point of no return, the point at which you can return or go on ( in whatever configuration you are in, calculated with whatever variables are known and applicable ) where the fuel on and the fuel to return between two places will be the same.
Of course, that really means the fuel burn, it is only exactly equal total fuel on and back, if the reserve requirements at both places are the same.
Tootle pip!!