Well... sour crack is too stumpy, not a good candidate for any training, is susceptible to botrytis (caught it early luckily)and produces overly dense cauliflower buds (botrytis susceptibility) that are almost white in the center. I grew an afghani auto with similar traits and it ended up with a bit of bud rot too. Had to cut the main cola off the stumpier sc girl..and still had a couple weeks to go.. We will see how her sister does.. Unless the final product is a 10/10, I dont have any use for this strain.. Maybe they would work for a stealth outdoor grow