I am going to (hopefully) be doing some traveling in a year or so (and not being in the states for an extended amount of time if all goes well) and I'd like to have more than one cup with me when I go (backup cup, maybe a different color if I don't want blue, things like that, y'know). What cups are similar in size to the model 1 Lunette? If it is slightly smaller than that, that is fine too; I do my kegels so I don't think there will be much slippage if it is slightly smaller.
Thanks in advance!
ETA: The only reason I asked this is because I prefer to hear from experience, not judge a chart.