Should I switch to flower?

Last friday was the end of my 4th week. I'd like to go for a few more days but I'm 8" from my 150w HPS right now. I could MAYBE raise the light another inch. I'm afraid they'll get too tall. Course I could always do some very gradual LST mid flower. View the plants at https://www.rollitup.org/grow-journals/232447-northern-lights-soil-150w-hps.html

I strongly suggest performing LST before you decide to flower. Flowering attributes 2/3rds of the plants size when all said and done. LST for a few days then start your 12/12.

Thats all I've got...good luck and happy growing and smoking my friend