the drop test gives you a rough idea at were the cars sitting, on the mugen its not so critical to have your ride height exact to the mm, on the bench the rear is a few mms higher than the front, then I adjust it to how the cars sitting as I see it going around the track.
Kman, kit 1mms with the 3 alloy is an early engaging clutch, 1.1mm springs are better with a alloys (broke a few springs with this setup?) but not good with composite shoes, you could run a mix or just put a nice 4 shoe on (werks or Ascendancy) very long wearing clutch, reliable and a good engagement with 1mm springs.