Yes, grafting is using that cut to join plants. It's commonly used to speed up production of peyote about ten years sooner. Grafting is not possible with marijuana. You would probably want to fim, or train it, or scrog in the future. Also consider cutting veg period in half. A vegging plant will double to triple in height generally, so a shorter veg time would be a little easier/faster. Sounds like you had some downtime, couple wasted weeks, + 2 weeks to heal so months electricity/nutes. Of course none of these methods while in flower, and give er time to heal before switching light schedule as this is stressful enough especially right before flowering.
