Dude, I transplanted mine twice. Once from rootriots to their 1L paper starters, then from those to the outdoor. Root ball practically fell apart when I put them outside. 2 out of 12 stunted bad. The others are about 60cm-1 meter tall. They could have been bigger but auto genetics have come so far, it almost doesn't phase em.
Nothing wrong with giving it the good ol' college try. I'm actually really excited to see how autos do under full t5 to finish. Haven't seen that before.
As for that other thread, could be a duplicate. RUI does that at times.