QRH-brake cooling chart B737-300/400

[stator vane]

Performance Infight-Advisory Information.

737-300 CFM56-3_20K

Brake Cooling Schedule (not pronounced-schwejdule)

for example:

weight 65K brakes on speed 120kts TAT 20C
pressure altitude 0=25.9
2=24.8
4=23.6
whereas
weight 60K brakes on speed 120kts TAT 20C
pressure altitude 0=24.3
2=26.3
4=28.3

i suspect a misprint of some sort, but the charts for the 300-22K, 400-22K, 23.5K have similar abberrations in the 65K 120kts brakes on speed section.

am i missing something obvious?

and no, i didn't find this myself whilst perusing the QRH on my off days!

thanks in advance;

stator vane