Add more limonene if it's only a tiny amount remaining in the mimosa soup. Mix well for another pull and the remaining amount from the previous pull gets mixed into this one. By this point you should have got most of the goods from the soup so the losses in the small amount of unrecoverable limonene become trivial.
You can compare the yields from the first and second pulls in order to determine whether you feel a third pull would be necessary.
What I have sometimes done when recovering the last remnants of solvent from and extraction is gently pressing a spoon into the surface of the mixture so that the solvent layer can flow over the edge of the spoon. The solvent that collects in the spoon can then be removed with a pipette (but ideally you should get hold of a bigger pipette).
And if any base soup comes over with the limonene, squirt that limonene into a catching jar (or a pyrex jug or whatever) and not in with the rest of the recovered solvent. Usually the base soup will be a few drops that stick to the catching jar and you can separate the limonene more cleanly that way. This two-stage process is probably the single simplest thing you can do to ensure clean pulls so get that catching jar/jug ready!
