[Rules] 5.63 Limbering and Unlimbering

[broadsword]

But what puzzles me is: If the game intended it to be that easy for mortars to limber and unlimber, then why have limbered and unlimbered sides to the counter with different movement rates in the first place? Seems to me that either limbering really means something and costs something for a mortar unit, or a mortar is just another personnel unit and limbering really doesn't mean anything except whether you'd like to move it 1 point or 2 points (and who wouldn't rather move it 2 points?)