Yeah, where holding down the button gives it more power. You'd have to test it and probably change the level design, but I feel like bouncing around at different speeds might be easier to control then waiting for the right angle.
You can already kinda control the power of your jump. A small tap will barely make you move but you are fully loaded in half a second so your window of control is really thin. Thanks for the feedback, I really want to push this game and even try to make other type of games using the same controller