I was out climbed by another Tiger with a new powerflow last month while going to get a $100 burger. I got a 76′, my buddy has a 79′. Very unscientific, but I couldn’t keep up. I was climbing at 350-400 feet, he was at 500-600 fpm on a day that was getting hot. I’d say there’s definitely a climb performance gain. We were about the same prior.