Wow guys. If were going to argue about SOP, know the SOP! The AOM defines the tails that are supposed to to GAIN +4 and GAIN +8 and the ALTITUDES associated with them. (+4 below FL200 or +8 below 15,000 depending on the tail). Seeing those gains at the gate doesn't mean that they were their the whole flight, only that they were there below the appropriate altitude, which IS SOP!