Gentlemen,
A couple of my thoughts. (which you all can take with the grain of salt they are worth.)
1. Steering ratio. It may seem slow to you. That is because you are not driving fast enough.
Really now. The 2.5 rack is going to be too fast for tracks like Willow. It would be better to use shorter steering arms on the uprights. (If you will notice, there is plenty of room for more holes on the part.)
2. Ride height. The 2395mm WB (95 inch) chassis was designed for a 4 inch front and 5.5 rear ride height. (This is measured at the front bulkhead and at the rear most bulkhead.) The geometry is correct at this dimension. The lower you go, the more camber change you will find in the travel. But remember the camber curves are optimised already for normally available race radials. But you guys can do what you wish to make the thing work.
3. Spring rates. It s all a matter of of driving style. The front end seems stiff until you go really deep under braking and turn in. Then it makes sense. the rear seems soft until you pick up the throttle pre-apex and are full on it at the apex. Then the weight transfer will make sense.
But only if you drive the car the same way I do. It is a non ground effect-pure mechanical grip piece.
The dynamics are very basic and you just have to hammer this chassis. It demands forward thrust to achieve ultimate lateral G's. It demands heavy braking on slow speed turn in to work correctly.
Now you guys can set the thing up any way you wish to go fast as the chassis is pretty adjustable and forgiving.
But I designed it to suit my way of driving a non aero car.