The CoG reason for the CWT pumps seems reasonable to me.
With regards to the RT valves, can anybody confirm that the MTOW limitation is because of wing bending reasons?
The MEL for the RT valves also states that any CWT fuel must be carried in lieu of payload. We have discovered why this would be required for the CWT pump inop situation, but why is it also required for our RT valve inop situation? I don’t think in this case it would have anything to do with the CWT pumps failing, as that is for a completely different situation. How would the empty RTs effect the CWT fuel?