I have a latch 32L carry onRimowa. You need to ensure that alignment is correct if you try to force closure. If you bend the hinge, you won't be able to close the case.
Hence I often use compression sacks to ensure my clothes fit well. I also carry shoes which can be compressed flat. I think if you know that you might be overpacking often, a hardcase is probably not the way to go.
I also carry a compressible duffle bag in my suitcase in the event I bought too many items