Jambo Buana
Funny how it's always the F/O that that makes the mistakes.
In my experience it tends to be the F/O's that know how to optimize the use of the FMC, and anyway that's why there are two of us to continually crosscheck, not only each other but also what the A/C is doing.
Don't forget good old airmanship and your 3 x table with a decelleration allowance +/- a bit for headwind,tailwind,high/low QNH,TAI etc. This will soon reveal any programing errors.
