I've been averaging about 250 with my Desert Heat but you have to know when to put it away. I shot 279 with it on Monday. I was going to drill my Sling Shot - 60 x 4 x 40. The ball is so weak and has such a small differential that I wanted to put a long and strong drilling on it. Honestly I don't think it will matter much. I also contemplated using a 2" pin to pap or a 5" pin to Pap but decided to go with a much pop that I could get on the back end. The 2" pin to Pap is suppose to be very weak as is a 5" pin to Pap. I just hope I don't get a under/over reaction.
I actually bought a used Sling Shot for my friend who is a lefty. He has a terrible over/under reaction i the house we bowl in. This ball will let him have a look he doesn't have. The ball went long and then made a nice continuous move to the pocket. His carry was pretty good. The proshop guy put a little surface on the ball so the ball would read. I was a little ticked when I first saw that but the ball rolled well for him. I can't wait to get the ball this Saturday to try it out and see how it compares to the Heat.
I had a Desert Heat that I replaced with a Slingshot. I did added polish with the slip agent in it and seemed to do the trick. The polish gives it a bit more length and takes some of the snap out. It I a about as close as I have found to the Desert Heat.