You would have a mutt. No matter how many times you breed the hybrid back with a Ball....it will NEVER be pure. The issue here is that an animal who may look 'pure' down the road would still be say...10% carpet.
....so then down the road...you may purchase a 'pure' ball when in reality it could be a hybrid...
Although not considered hybrids...this is becoming a problem with morelia. It is hard to find a 'pure' JCP. Many have been crossed with Coastals, Diamonds, and IJ's. However people try to breed these offspring back to Jungles...but they are never the same.