I have the Kortz set up on the front end. It seems to work just fine. I have only ran the car 2 race weekends The first weekend the car was completely stock. It was so loose it wasn't funny. For the second weekend, I switched to Degani's set up.
Here is my set up.
Front
3K diff
-2* camber
0* toe
50wt Associated oil
1.45 drilled pistons
Kyosho dark blue new SP2 front springs
Inside on arms, 3rd from outside on shock tower
ride height just above level
22* hubs
+ hole down on kickup block
Middle hole on steering rack
Kortz mod to take off upper arm
Upper link is mounted lower hole on shock tower and outer hole on c-hub
Center
3K
standard gear ratio
Rear
1K
-2* camber
started with 3* toe, went to 2.5* toe for main and it felt better
new hubs w/no inserts. Used lower hole on hub
Camber link inside lowest hole on shock tower, outside lower hole on hub (will do rear camber link mod before next race)
25wt rear Associated shock oil
drilled 1.45 pistons
Kyosho light blue 777 rear springs
inside on arms, 4th from outside on tower
middle wheelbase (tried long, pushed. Tried short, was too sketchy in the bumps)
1* antisquat
rear bones level
The car felt much better with this set up. I will be trying the new chassis for the next race (in early April, we have indoor racing in Minnesota in the winter). I will give a full report then.