I don't know If Falken has addressed/fixed this or not in this current gen of these tires, but I had a 2 gens ago set on my Z28, and they had every sidewall bubble on them (and that was a tall 50 series profile sidewall no less), and from not even very hard impacts, or particularly deep potholes. (And I was
not the
only one who had that problem with these.)
Other than that they were decent tires.