H-mmm! That is an interesting question! One point that seldom gets mentioned is that each time a plant gets "revegged", the yield deminishes quite a bit! For this reason, I have never actually done it. But I get the impression that after 2 or 3 times the plant just "poops-out".
If this is true, revegging can't be doing the plant any good. I would think you would want to use your "best specimen" for a mother, rather than "damaged goods". On the other hand, a proper recouperation and rejuvination might "even things out".
It should be interesting to hear what others have to say!