Leaves

Your plants look healthy and "normal" to me, and I am not sure what you are worried about. Sativa or sativa dominant plants usually have very narrow leaf blades and some Indica/indica dominant strains will have very broad leaf blades at first, then when flowering commences, revert to growing leaves with narrow leaf blades, possibly as an adaptation for allowing more access space for pollen to find its way to the pistils/flowers, but this is just a guess by me. Your plants know what they are doing, so just continue with your current care routine and all should be well. As a tip, next grow fill your pots right up with soil, this will provide vastly more room for root growth, leading to bigger plants and this also helps to prevent any fertilizer salts building up to possible toxic levels and also helps with maintaining a more constant/consistent moisture level. Your pots won't take up any more room in your tent, but your plants will be much happier, and by sitting up higher in the pots, they will receive much more of the reflected light than they do by being in the shadow of the pot "walls", and this will lead to bigger/faster growth, especially with the lower branches. After all, the soil is the cheapest part of the grow and skimping on its use is false economy, as it just limits the growth of your plants. By having more soil, it also cuts down on the need for supplemental feeding, thereby reducing costs slightly. Feeding your plants with amino acids, humic acid or fulvic acids (or all 3 for best results!) will really boost your plants, particularly at the beginning of and throughout flowering. Hope this helps,............. Organoman.