I took this advice and half-way through I can say that this is pretty much spot on. Everything about this headbanger is nearly identical to my old sour diesel, all female phenos are consistent too. It's got that quick stretch, big calyxes, funky smell, and really good resin production. Dense, easy to trim nugs evenly spaced out and the fan leaves come off with easy snap. What a great plant. Easy to train too.
I think that the mother to headbanger was a sister to my old diesel so it really could share a ton of qualities.
Great advice!
Glad it worked out smooth! I have extreme confidence in that sour Karmas got.