Are you refering to back-crossing to stabilize a strain, from a previously femmed female? (re-femming...?)
Are you are wanting to clone a femmed lady, and stress one of the offspring, and pollinate the mother plant with the femmed pollen? (basically the same thing, but different objectives)

If that's the case, it might not be wise to take the resulting femmed seeds from the above actions, and fem those again. Not sure the technique of back-crossing to stabilize the strain would apply, since you would be inbreeding rather than cross breeding.

<It's too damn early to think this hard, lol>

A plant's "hermie tolerance" can be back-crossed into the strain, but it's tolerance can also be degraded, so start with quality genes. That way, if there is a "hermie-tolerance" shift, it's a a subtle change that likely wouldn't be noticed till way down the line. (possibly generations...possibly many generations...not at all sure)
Every strain has the ability to be stressed into hermaphrodism. Some have a higher tolerance to stress than others, but some have weak genes to begin with, and re-femming might re-wire the stability of the strain. Doubtfully it would be in a positive direction. (Murphy's Law)

I'm sure I'm overly cautious about this, but I've never pushed my genes that far. For me, there's no reason to, since I don't purchase femmed seeds, and I know the stability of the strains I play with before I fem 'em.

Was this close to what you were asking...?