How is it acting otherwise? Shifting properly and firmly, etc.? Was the take-up smooth? What's the rpm with a more aggressive leave? As mentioned earlier, the converter allows more slippage when transfering the torque, so it may seem as if you're not getting the performance that the rpm and throttle opening used to give. It'll feel and sound as if you're slipping the clutch. I opted for the switch-pitch because I wanted the low stall speed for 90% of my driving and the high stall to fill in the bottom end when I felt like having fun. If the engine is content to idle at 750 rpm, he may have too much converter depending on the rear gear. I enjoyed the high stall speed off the line when at the stoplight Grand Prix because it sounded like I was trying much harder than I actually was, and made for a bigger surprise when I did use the Force.