XRAY - Model racing cars

Here are the corrected specs:

Front Shocks
Softer damping - Thinner - More holes
• More steering into the corner.
• Less stabile.

Harder damping - Thicker - Less holes
• Less steering into the corner.
• Easier to drive.

Rear Shocks
Softer damping - Thinner - More holes
• More traction.
• Less steering.

Harder damping - Thicker - Less holes
• Less traction.
• More steering.

ALL Shocks (F+R)
Softer damping - Thinner - More holes
• Overall less steering but better for bumpy tracks because car better absorbs bumps.

Harder damping - Thicker - Less holes
• Overall more steering but car is more sensitive and not good on bumpy tracks.

The Standard front shock damping is 600cst with 2 piston holes is slightly hard for my local track, track is a bit bumpy. I feel the damping is too soft for 600cst 3 holes.

How do I get the setup for the shock where the damping is in between. 500cst 2 holes?

Is there a chart to refer for damping level with corresponde to the no. of piston holes and shock oil combination.