Hey pop i grew KC45 on my first grow,i had 7 other autos in the room,all the others were in bloom at week 10 the KCs did not flower,i had to chop the KCs to make room under my bloom lights.This was my first grow,i really didn,t know what else to do.The KCs were over 5ft tall,and i was running out of room for my flowering plants.These get huge,I,m not going let them veg.that long ,i only have 8ft. ceilings.These were supposed to be autos,i never had the chance to switch to 12/12.on these to see if they would bloom.When you are a newb,you don,t think things thru.Now that i,ve had a few grows under my belt i will give them another shot.Peace.