That info came right off of attitude's web site, search attitude bank in google, and then once you have the page, look at seedism (the farm who produces the strain), or you can search for seedism seeds and see if they give you a better deal. One week after placing an order on something else with attitude, these showed as feminised, until just recently I believe (not 100%) the attitude sold them as unsexed! Get them now, before they go back!
As far as feminized: cant speak for anyone else, but I have had 100% success with 30 seeds being female, but I also heard they are prone to turning hermaphodite, with that being said, if the nevilleberry would have been advertised as fem 2 weeks ago, (again, could be wrong) or if I would have seen it, I would have gotten it.
To make it simple, if you want to wait for some super taste tester type stuff that takes longer to cook, go for it. My point was that sativa can go sog, but it kinda defeats the purpose of the sog, which is: alot of buds quickly. With neville you still get alot buds but it takes an additional 35 days later to harvest. In 35 days, with a "quick indy", I could have dried and cured batch 1 and be 1 week into flowering batch 2. Because you would have taken your cuttings and vegged for 4 weeks allready (estimate) on the second batch, while the first batch was begginning to flower, and the process repeats again and again.
Research on how to trim for a sog, and look at net trellis or stakes to hold those softball bats up, yes, it is good for sog, if you have good lighting> because of how tall they get. Remember the fast indie will allow one to actually smoke cured product up to 6 weeks earlier before the neville, however, when the neville is done, well.... haze x blueberry??? you tell me