Never try to reveg the male before...I would just let that male go and obtain another since it's being so difficult, 7 weeks is a very long time. You want to breed a male that is easy to clone, reveg (for emergency in saving the genetic/pheno) to pass on the trait not the other way around. Not sure about revegging means stability. What light cycle is the male under? Would require to switching back to veg nute schedule (I'm sure you've done that).