Are you talking about FR, right? I hope so...
Actualy, 99,99% of my FR cars have stiffer springs on front than on back... and i counter effect it adjusting the rear dumpers, starting from 2/2 (bound and reb) always and going up until i find the right balance, witch rarely goes up than 6/6. And the diference between both bumpers never goes upper than 2. So if i need to increase the rear dumpers to 6/6, probably ill also raise the front to 4/4 or even 5/5.
Anti roll i mostly never use higher than 3, and most of times both (front and rear) stays at 2.
Not related, but your cambers must team up with the mix. It will must helps on the overstering balancing, grip at the corners (specialy when using CH) but cant force a regain of grip during in the middle of a feint manuever. If this happens, you did put too much angle on this camber, specialy the rear.
The spring stiffness is where start the tunning for drifting, thats where you start to destroy the car stability in a positive way. How hard they will be depends of the HP, weight, height (witch is also tricky to set properly), wheel base and axis distance, and finaly weight distribuition feeling.
Maybe im talking a lot of BS, but thats how i did learned how to find my finetune on most of cars. I mostly always follow this lineage and only change my direction when i see that im going to the wrong direction.