Nah it won't die,give the plant just water for a few days then lower the amount you feed. These plants are tough mo'fos. Don't look fo the leaf healing,way to make sure everythings ok by checking the new growth looks nice and healthy,as long as that's ok there's always hope.
I've gotta revive this thread,ch9 has some real fast finishers. Jack was 7 week's but fastest is a pheno of p.o.w33 that was done in 6weeks and it was a proper couch lock stuff
I'm already smoking some from the chap that gave me clones and yeah its banging. Not a fan of cheese though. When I first got the clones I was told they was all lemon skunk.