One more point on Hysteria....Im throwing mine without polish at 4000 and on THS the ball is super strong, clean upfront and a very hard but controlled move. Comparing to my Disturbed, they are two totally different reactions, at the same surface(4000) the balls are close in total hook but the Disturbed still starts up way earlier with a totally different move. If we look at OB surface then the Disturbed is miles stronger. I find my Hysteria at 4000 a great compliment to my disturbed at 2000. As the Disturbed starts early and loses the punch, when Im on a heavier THS, then the Hysteria is a great drop down, stay in same spot and get through the heads and get punch on backend. I actually really loved my asylum but found that more often than not the reactions were so close between Disturbed and it, that it really wasnt a good go to ball after Disturbed. If the disturbed started reading early, so would the asylum. I traded it away because I find the cleaner motion of the hysteria a better compliment. The disturbed is a great ball that handles some heavy oil well and med heavy very well. One of my favorites and also takes surface changes well, but I find the Hysteria more useable.....They are both must haves in my opinion. I also have the Hyper Cell which is more angular than the Disturbed and handles heavy a bit better, but I could get away without it as long as I keep Disturbed in my bag