Interesting. Really good results. Uisng the basic fundamentals of any type or rear suspension. No flex, no bind, good shocks. Then of course comes the more difficult part. correct instant center, that would be bar angle(s). Weight distribution. Front travel. Shock adjustments. And for those who have more power than us mere mortals, power management. Some racers are really good at these ajustments. Most are not. Why? The car works OK when its not 100%. Just like a good engine tuner. You can make it run. Or you can make it run at it's best. For years the go to was bigger tires. Even today look at how many mid 6 second 1/8 mile cars run 14x32. Ask most racers about shock adjustment and they get blurry eyed.
Doug