I did a test grow from Karma's stock last year. San Fernando Diesel. I had beans that popped in two days, some that popped in two weeks, and some that didn't at all. The growth was agonizingly slow and the m/f ratio was a major disappointment. I ended up with two girls and one was the runt of the entire batch. The stretch was miserable to watch and noding was a joke. I had a pretty cool room last winter, so I allowed that I did have a small hand in it. However, most everything I had in there with the SFD performed very well. The yield was a total joke. I had nothing good to say about any of it except that at least they didn't hermie.
So you know what happened? Well, the normal fem turned out ok. Actually, it turned out better than ok. The runt fem purped some and what little there was came out of a short cure as some of the absolute dankest weed I grew all year. This stuff was insane.
So, there ya are. The best, and the worst, all in one easy to swallow pill..