I decided to go ahead and drill out the seperator plate for the Mild setting for my 95 Mark VIII. I decided to replace all 1-2 2-3 and OD springs and pistons as well and leave nothing out. My main concern is even with all the smooth shifting springs left in how much harder will the car shift just drilling the holes to Mild? The car is plenty fast as is and so I don't want neck jerking shifts or chirps, just a smooth stock feeling shift. Is there a special set of drill sizes for what I am describing or is that what Mild is supposed to be. Also, are the checkballs hole specific or are they all the same size. I want to clean the valve body good and don't want to screw them up installing them wrong...And is there any benifit to going with new shift solenoids on a car with almost a 100K? And last but not least - of the two tranny lines going into radiator/cooler is the upper the supply line or the return line? Thanks. Hopefully my final Qs get taken care of and the weather permits the J-Mod tomorrow.