aside from my own personal opinion i liked the KA a lot. I drove a friends ka s13 with agxs and liked the ease of corner exit. The SR seems like you need a much more precise foot to keep it exactly where you want it. Idk I haven't driven it on a track just some windy roads.
Keep in mind i was comparing it to my set up which is coilovers and an sr@12psi
Either way i guess im just trying to say that the stock power curve of the ka is alot easier for me to handle on a corner exit than the SR. I should learn to drive