For anyone who's interested (and even you who aren't ), I just wanted to post something "real-world" about the PPD "Dial-a-Grip" blocks.
THEY ARE THE SHeeeT!

I've put several packs through the car with 'em on there and guess what:NO Movement! The way they lock onto the hinge pins and bulkhead makes them far more solid than the stock pieces--and completely adjustable, thankyou very much.

And I swear the car feels more solid too--though some of this is probably just in my head Once they get on the car, the whole "bling factor" takes over (or at least it did in my case!) and rationality gives way to litte-kid enthusiasm

It's gonna take me a while to figure out how to make the most of the adjustments because I've never been able to fine-tune RC, AD, KU, etc. so quick. It's something I can now do trackside!!!

Thanks Kevin at PPD for coming up with something that should have been thought of years ago. I just wonder how long it's gonna be till they get copied...
Maybe you can get a patent or something?