This is a setup being worked on for Mod. I tried it in 21.5 and the car feels very slugish to me. Unable to attack the corner. Tried lowering ride hight to 5.4-5.6 and softening the top deck to single centre screws. Still a bit lazy to me. We don't have a permanent facility so trying different adjustment during the raceday as the track is also evolving is difficult. I tried the 1.5 front top deck with another setup and found it to be too reactive and the rc maker top deck I used on Asphalt was undriveabe on carpet. Next step for me is going to be 1.3 front and rear sway bars and 600cst shock oil... Thoughts?

I have a question about the track you run on is it Black CRC or Ozite?

After looking at your setup I would make these changes.

Ride height - 5.0 front and 5.2 rear
Rear - toe 3.0 degree each side.
Shock oil - 350 cst
Piston - 6 hole
Shock - make sure the caps are drilled.
Springs - Linear makes the car easy to drive but lazy to drive especially in modified.
I would recommend picking up a set of progressive springs for the front such as B10-SSP24A.
Keep the kit 2.7 in the rear and run the progressive B10-SSP24A up front.
You can also try the optional progressives springs from the BD11 such as front B10-SSP21 and B10-SSP18 rear.
If you can not get those springs readily you can also slap on some Xray 2.5-2.8 and 2.6 on and see how the car performs.
Droop settings over ride height is 1.5 mm front and 2.0 mm rear.
Also the upper clamp inner camber link needs to be positioned on the outer hole both front and rear.

Fine tuning
Take the 1.0mm wheel spacer shim out from the front but keep it in the rear.
Gear diff oil down to 7500
Revert back to the kit motor mount screw positions
Roll center shims under arms from 2.0 mm to 1.5 mm front and rear.

A big change would be switching out the aluminum chassis for carbon.
I know a lot of BD12 drivers at Yatabe Arena have done this with great success even when the carpet traction is high.