WOW Jon, those are some really nice looking plants for your first... very green and healthy!! They will fatten and soon, pretty soon every day you see tem they will be looking thicker!!! Do your self a favor and get some Cha-Ching, Beatstie Bloom and Open Seseme and some guano (i think that is the same as your Big bud, and i think its better, but i got guano, so i got to use it) I tried Sensi but for a beginner, it was hard for me when i tried balancing a problem by giving more a or b... I found that the Foxfarm works best for me in the AN line, i love the soil and everything oh yea and if you add 1 tbspn of molassess to a gallon of water and give it to your plants with every feeding (i use for feeding and watering, and even use it thoughout the flush) that will add some wieght to your buds.....