I completely agree they're probably great at a higher speed track, 70-120mph(never been on a track...), but in lower speed conditions on backroads (40-70mph) it loves to take you off cliffs. As my fathers car is a completely stock setup, I can't say much for how well they tune. I'm sure you could tweak a few suspension parts to tame them up in the low speed. And yes I so much wish I could have that gearbox in everything! that close ratio 6 is just perfect.