Reversing has been done many times by a lot of people. Thats where most fake gg4 comes from. She is such a poly hybrid reversing doesnt reliably yield plants like the clone. With high numbers you might get lucky but most will be chem sis leaning or dubb leaning.
You could just use a male plant and then select the best one's over multi-generations and then go back to the plant that resembles her most then after that you could use the same male gg4 x ? to hit the Clone only & then stabilize her offspring once again from there and you will have something that's so much like the Clone you won't be able to tell the difference and you may add more vigor to The Offspring that way but that will take a long time
Poly's can be reversed and stabilize but you have to have space and a lot of time to dedicate to the project
If you was to just use a male that is closely related you could take your next Generations and create something that's identical through selectively hybriding
And maybe I'm just lucky or I'm that good because in the past I reversed Poly hybrids and there wasn't much variation in The Offspring
But to each his own
Good luck with your endeavors
I'll be following the progress
& I'll be sure to let everyone know how my gg4 turns out , I'm sure if I pop a 10 pack I'll get one just like the mom ! Well see