Yesterday, the Gate Agent informed me that on 3-class planes, there is no CPU eligability (to 1'st) if having used a RPU/GPU from Economy to Business.

It was mentioned that due to CO not having any 3-class planes, SHARES has not been programmed to auto deal with this and the Gate Agents should be enforcing this manually prior to T-24, which they did.

Seems like I got a few bonus CPUs to 1'st over the past 6 weeks...