Originally Posted by BruceyBonus

My preference is just to have a bag that I know fits, then don't need to try to evade "being caged" (as I've heard the process of having to put your bag in the sizing guage being called) at the gate.

Originally Posted by Oaxaca

No guarantee they won't check, though as mentioned above, I haven't been checked and have travelled on both types of ticket. If your bag is a couple of cm out in the depth and not too stuffed if soft-sided, it may still fit the FR sizer as they are a little more generous in that direction.