Ive used bud ignitor on multiple crops. I wouldnt say that it increases budding sites..but it does curtail the amount of stretch that occurs with sativa dom plants for the first couple weeks of 12/12..helping tall plants stay a little more compact. Ive done side by sides and the bud ignitor ones were about 20% shorter. The main ingredient is monopotassium phosphate I think..which is the same thing in Dutch Master "Reverse",which supposedly prevents stress and keeps plants female (Ive also used that on herm prone plants and they still hermed,but it had the same "shortening effect" that bud ignitor has).