On a street car 511 let's say you have 660 lb/ft of torque peak at 5000, but you also have over 600 lb/ft (90%) of peak at 6200 (equates to 708 hp) but you also have 600 lb/ft....at only 3800 rpm. My whole thing is why waste enough torque (more than a 455 Buick stage 1 makes at peak) just slipping a converter? Why did you build a big WEDGE?

To me it's no fun driving on the highway at say 2900-3000 and you come to a big incline in the road, and instead of the converter (being somewhat closer to peak torque transfer) just grabbing the load like a freight train, it will instead require a lot more throttle (and gas) just to maintain highway speed....because the incline is the temporary equivalent of adding hundreds of pounds to the car. (which is also the easiest way I know to get someone's head around how vehicle weight effects stall speed) .I like broad torque in a light car, it's a lot of FUN. if it costs me a tenth at the track, it was a lot more fun driving to the track and back. if you liken it to a manual the stall slip wasting useable torque is a lot like having to downshift to get up a hill only, not because you don't have plenty of power, but rather more like because your clutch was slipping.