Homemade pots stunted my plants. Can they be saved?

I tried SOG for the very first time after much success with nice big plants. Because I was short on pots I used some 3 liter water bottles that had indentations for handles. Bad idea. The plants became root bound and stunted and by the time I realized the problem they were 50+ days into flower. I transplanted them into bigger pots and they are all very healthy looking. They look like they have about 4 weeks to go still. Ironically there was one healthy bud on one plant that was covered in crystals and ready to harvest but the rest of the plant(s) look like they have 4 weeks to go. Will the plants mature the rest of the way? Or should I just scrap it all?
 
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