Need help with Caster adjustment on Comp Coupe.

A-arms have Monoball and VCC Camber shims.

Current LF caster is +3.0, RF is +3.2. Looking to get both side to around +6.0

How to I make the change? Is it with the aluminum spacers between A-arm and monoball or with the Camber shims?
The 4 bottom A-Arm monoball spaces are all equal in length.

Currently all the front shims are the "E" shim. LF Camber is -2.5 RF Camber is -2.7
Would also like to get Camber to the -3.5 range.

Thanks.