24/0 light cycle...hmm ok maybe it increases growth rate by 30% yea but it also jacks your electric higher too, shit mine was high enough with the 18/6 with my 600W hps. your plants look pretty good tho man, your either burning them with nutes or with the light by the looks of the yellowing and crinkly look on some of your leaves. i didnt start nutes til like 5 weeks in, i cant memeber for sure or where your at right now but your bringing back memories, im actually just finishing off some papaya, my first grow in fact, they are hanging to dry right now. if you look up my thread i have a bunch of pics i took a couple nights ago just before harvest. and if you search for pics under papaya you will find even more pics of mine of my papaya in its earlier stages. the thread is called "papaya anyone?" i suggest you check it out because thats what you have to look forward to.. keep up the good work man