I recently acquired a few supposed "Berner GSC" cuts. I have grown GSC on a few occasions and have been told it grows a little shorter than most of the current versions on the California market. I was also informed by someone that the true version comes in a lot more purple if so it would explain the color change. However this one is turning purple at 2 weeks in and not an unhealthy from nut deficiency kind but truly from inside out all leaves are getting hints in the interior etc. At first i thought it was my routine of preventive spraying that induced a burn but once i got closer i realized it was in fact color. I am also growing Kens GDP SFV OG and Candyland and non of these are doing it so it wasn't a burn or issue it is a trait. here are a few pics in the dark and then the one i saved for the mom in veg state.