At this point, our plan is to simply drive the heck out of it and see what the car needs from here. We consider the mild stuff we did a decent starting point, but clearly not the end of what we need to do to make this car competive from a suspension standpoint. That said, you have to start a project somewhere and we'd rather autocross it in this form rather than stock until new parts are developed. Our first event with the new suspension is in a few weeks and we'll post a new update then.
Our initial impression is that we're certainly moving in the right direction with the obvious need for performance shocks at some point soon. We personally like the big bar combination, especially on the front, as the outside front tire's contact patch is held much more consistent at mid-corner and it would take big spring rates to accomplish the same thing. It doesn't have that OMG!1!!1 OVERSTEER!!11!! feeling that a big rear bar only will give you. That said, once that big rear bar hikes the rear inner tire off the ground, it's not helping you anymore.
As far as camber is concerned, we love the design of the Corksport camber plate, but can see the need for more negative camber in the future. With the two-bolt lower strut design, we can see a set of smaller-shanked bolts figuring into this project shortly.
Rate-wise, the Racing Beat spring set has a great “Trunk-kit” feel to it–like something that Mazda should have spec'd in the first place as a part of a “cheater” SCCA package like the MX-5 MSR. Firm, but usable on the street for a daily driver, which is exactly what this car is.