H.A.F.
a.k.a. Rusty Nails
If a strain has that recessive herm trait the short veg might just be something that increases your chances of geting it. So it could be seed, grower, environment, or all of them.This makes sense with my two herms this grow. Flipped everything at 4 weeks just to get a bunch done before tester season started. It was still a good plan, and out of 12 seeds I had 3 males and 2 herms. I was planning on more males anyway, so I learned a good lesson in the process and it doesn't hurt so bad.