Ben, great work. You're becoming a rather accomplished hack!
I have a bit of a worry though... the massive increase in spring rate is going to require some beefier shocks. Your stock metro shocks just aren't made to see the forces that they are seeing. Keep an eye on them for leakage and keep the "feel" of the ride in the back of your mind so you will notice when the shocks go.
There's a reason why car modding is a slippery slope