Cant coment too much on this but Ive just replaced my standard knuckles with the T3 items due to one being bent... I'm not/wasn't really looking for an increase in lock, just a stronger alternative.
The T3 knuckles are fuckin beefy as, solid steel around 15+ mm thick. I have them on the outer setting and my 15x8's 0 offset rims (195/50s) touch the inner guard wall on full lock, the other issue Ive encounted is on full lock the bottom of the arm hits (slightly) the top of the stock castor arm where it mounts to the LCA, but I think this is due to having xt130 arms....

This could probably be easily fixed by grinding a small amount from that area on the arm......

Haven't driven it yet apart from a lap down the street at no more than 15kms so cant really provide much more feedback other than the steering was pretty heavy but very direct (I have a quaife rack also)