I am no where near as experienced a greenthumb as many of the guys on here or over there, but I did just read the thread and was not entirely swayed either way though I did not like the explanation of I have xy and z strains running in there identical setup and they look fine??
I have a strain or two should you choose to run just like everything else in your stable you would be disappointed as the are just finicky.....again I have not grown GG#4 so maybe she is not sensitive at all but if we are gonna start getting into specific abnormal problems then I think people need to break down full disclosure setup nute schedule times in what etc..before people jump the gun.
i daont have the experience or expertise as alotta peoples here either.. but i have run her a few times now and every run was a diff setup.. and i personally didnt see her be sensitive to anything!
1st run all MH 600s for the whole run with 800ppm once a day , no co2
2nd run MH 1000s first n last 2 weeks and HPS in between at 750ppm 4 times a day,with co2 at 1200ppm
3rd run HPS 1000s start to finish bout 850ppm 4 times a day with co2 1200ppm
4th run in darkness now gets chopped saturday.. i really gave it to her with the nutes to see how she did... was HPS 1000s start to finish, 1200 ppm 4 times a day, and no co2 just a whole lotta air exchange, and she is bigger and chunkier than ever foe me.. she took the heavy feeding like a champ!!! lol .. just my 2 cents and experiences with this grrrrrreat cut
peace n Dabs
HK