Have the complete PST polygraphite kit on the front (still on the stock front & rear sway bars, have not done the Addco upgrade), have the PST rear control arm bushings & new Toyota rear swaybar & endlink bushings (the Toyota items are getting hard to find, last year these were either CLASS D or CLASS E items (IE: Toyota is running out of them!!).
Basically, I finally swapped out my worn 18 year old suspension bushings, BUT at the same time, I changed my shocks/struts (worn out 125K miles Tokico HP's for a slightly used set of Tokico Illumina's that I bought from Don Lew), and installed the Cusco front & rear STB's (that I got from Leslie).
Made a nice difference in handling & cornering. Even though I have not done the Addco bar upgrades, or lowered the car (still on the OE springs), the suspension does feel much firmer than before & cornering feels much flatter.
Now if only the suspension in the Slug can be like this as well!!!