We are running an Amca in Australia (based on your Imca class) and are going with the Fastboys setup. We are looking for confirmation on the shocks mounting position (upper and lower) for both sides (how critical to the fastboys setup is this, as it is not mentioned in the stacked leaf instructions. We can only run the stacked leaf setup here in Oz - mono leaf is not permitted. Many thanks for your help as we are keen as to get this set-up correct - it looks like the answer to our car - looking forward to putting it into practice on the track.