Sorry I missed seeing this the other day in person. What feedback have you gotten from the customer?
I saw another Griggs "TT" customer on another site saying his late model Shelby "dead hooks" now with this approximate level of mods in (torque arm, shocks/springs, control arms (but I think sans the Watts Link).
I sometimes take that kind of stuff with a grain of salt especially when the torque arm hasn't necessarily been the first choice of drag racers the world over.
As you know I have the Watts Link itself on my list but I've been also thinking over the best way to get more traction. I was not terribly impressed with the standard UCA/LCA swap on my '07.
P.S. That *is* the stance I am looking for.