how are you finding the super soil, just had a quick flick through the last few pages so ill skip back and read a bit more,
also do you have the hps and the led at the same distance from the tops of the plants, would that be a more fair comparison then or maybe your doing this all ready, when i raise my hps to 2 or 3ft above the tops of the plant i dont get any stretching either like your not getting with the led, but when the light is 1ft or less from the tops of the plant i get more rapid growth, so im not getting stretch even from 3ft above the plants but plants grow quicker when the light is much closer,
i know theirs a light chart for hid lights and wondered if their is a light chart for led's so we can see how the distance compares and how much light you lose after a certain distance, the hid light chart shows the ideal range for me 400watt hps is 1ft or just less from the tops of the plants, so i like to keep it their, but in the middle of summer the light was 3ft above the plants from seed to harvest due to high temps and i didnt get any stretch at all,
im am using a dual spec light though so not sure if that changes anything, im tempted to try a mh for veg and hps for flower but i think giving the plant more of the light spectrum may give them an extra boost, ive only used dual spec bulbs hps bulbs though.
just wondered if the distance from the plants was the same for your hid and led,