Has anyone been mixing and matching packing cubes between the Aeronaut and the Western Flyer, and planning to with the Tri-Star? As much as I love getting stuff, at some point the $ do become a consideration. For example, my two absolute shoulder straps will cover me for any combination of two of those three bags or my Empire Builder, and my Brain Cell will also fit in everything. I already have 1 large and 2 small packing cubes for the Western Flyer. I know that it is optimal to have the packing cubes designed for the specific bags. However, if, let's say, I end up with a Bihn for all occasions, do you think it will be necessary to have complete separate sets of packing cubes for each bag or is there efficient overlap?
If there is an efficient combination of packing cubes to use for all three bags, what do you think it is?