I'm not having any problems... I simply bought a new light. Plants are looking great, I just wanted some opinions/options as to the best solution with what I have. If I use the HPS exclusively in flower I am losing about 7000 lumens, but the HPS is a better light. Again... just wanting a solution thats best for the plants (all HPS... all CFL... HPS with 2 or 3 CFLs... ect.) They have been in veg for about 4 weeks (about 10 inches tall and very bushy) and I had planned on going to 12/12 this weekend. Thanks.