I have all 6 springs in the bike, but since one of them is bent the force is being applied a bit awakrd, ill try removing that spring and the one directly in front of it and see if it helps the launch. My guess is that it will, but because theres less force on the clutch pack, im losing power thoough slipping.
From your first post where you said you had a steel loaded in first, I would make sure there is no leftover damage from this. A steel can slip in between the hub and basket (whereas by design the friction cannot) causing it to wedge apart and the clutch to slip and cahtter. Once you are 100% sure nothing else is in there and there is no damage (burrs or the like) I would spend time checking the steels to make sure whether or not you have any "dished" ones or not. My Yoyo was VERY specific about having one of those as the FIRST steel to be loaded after the first friction... heck they even prestacked them and zip tied them together in that order.