for the springs im running blue/green springs with #3 piston in the front with 35wt fluid,and rear im running 32.5 with #2 piston and green springs,no 4th hole drilled in tower,oh yea i only run the ballast weight in the rear with 1/4oz in the triangles,battery all the way up front,i run that setup in stock(mind you this is my buddies truck that i borrowed and havent ran sc in a couple years)and it was dialed with sauced rebars all around,i ended up with a 2nd for the night out of 12 trucks,would have won if i didnt traction roll with 30 secs left,just didnt have the time to catch the leader,overall i had fun running sc again,once i get through the holidays I'm going to pick up the .2 when it comes out