87accord

I recently put a skunk2 90-97 accord coilover kit on my 87 accord hatchback. I have koni red struts in the front and tokico premium blue struts in the rear.
the 90-97 skunk2 kit has four 8" 8kg/mm springs (about 440lb/inch), the rear setup allows the drop range I was looking for, but when fully adjusted down the front drop is less than I want by about 1" to 1 1/2". I need to get a 6" or 4". Skunk2 sells a 6" 8kg/mm , landrum has a 4" 400lb/inch, hypercoil has a 4" 400lb/inch. I've got enough sleeve adjustment to use any of them but I'm wondering about the differences between a 4" and 6" coil. Ground Control has a 6" 450lb/inch. Another factor is that I've got 440lb/inch on the rear. Looking for advice. Thanks.