know a grower peep on another forum that is absolutely in love with K2. He does selective crossing and is in a lot of his personal stock. From picks i seen of it...nice heavy yeilder with a good high. from the smoke reports he's given over the yrs.
The brother's grunt has a smoke report on the papaya round here somewhere.
I have the b52, but I haven't got em going yet. All the reports I saw on it said It's essentially a big bud with a solid skunk smell. Topping was recommended for outdoor to keep the rot down, buds are reported to get huge.