Well, another week gone by and another day of running mod sedan and testing the durability of my radius rod modification. I have to say, so far it's a resounding success.
Didn't break a single plastic C block, steering knuckle, or A arm, even after smacking the walls HARD 3 times on one lap. (serious brain fade) The tie rod from the bellcrank to the servro did pull apart, but that was my rookie mistake, it wasn't long enough to begin with and had only a few threads in each ball cup.
I now have a heck of alot more confidence that I will be able to survive the Indoor Champs with far less breakage. Now I can punt those wussy TC3's and XXX-S's and watch them shed graphite chunks like confetti