I agree on 'less caster (more vertical) equals more aggresive steering' part.
Think about Harley-Davidson motorcycles.
They have lots of caster angle (laid back) in front, so slow steering.
And if you look at any of superbikes which have steep caster angle (near vertical), they turn really fast at corners.
I tried Pit Shimizu 27, JB inserts yellow on yokomo wheels on hard bite, smooth, asphalt track.
Wow this thing really hooks up.
I broke my rear hub carrier at first corner from the straight.
Even before I reallized that I had to adjust to speed difference.
I was like 'Wow' until I realized that my car was doing donuts and somebody called 'rear hub'.
They have more air gap.
I was worried because JB inserts looked pretty cheapy material and tires' surface was narrower with more rounded edge at both sides. (more cornering grip?) I guess almost like yokomos.
The combination is really light.
I looked at sorex 36r with hpi green, proline. In center line of the tire surface is risen slightly. And only inner section has burning marks from braking.
Camber is about 2.0 all around.
Funny thing is pit shimizu tire surface is real flat and burning marks are along the exact center line.
Should I change the camber according to tires?
Seems like that way.
Or maybe proline wheels are too soft?
They seemed to give more cornering traction.
I couldn't try more.
I wonder how take off tires would perform.
Sorex tires really last long though.
BTW, yokomo wheels are really stiffer than pro lines.