by dream_rpg
I think Hermjard may have a point here. In addition to his rules quote, I seem to recall (though I don't have a rulebook handy) that one can only use Colony ships during the action phase, and there's a 'last chance' to use them somewhere in the end of turn (after combat, before upkeep?)However I don't see any major game balance issues if is/is not permisable.