Thank you all for your replies. I have a Trainwreck that I picked up as a clone at my local dispensary and she has done better than the others that were purchased at the same time. I think I got 2 Trainwreck clones from 2 different mothers.

She's not stressed right now other than flowering, so could I take a healthy branch and start it as a clone? Just cut it, hormonre it and root it. Would I be better off taking several clones right now to ensure the genetics continue? Or shoud I modestly harvest her wonderful fruit and re-veg?