Iv'e never had any problems with driveshafts yet, but then again I never go more than -3º negative on the front or rear mate.

My settings change depending on where I go, I have different settings for twisty venues and venues with long straights, so it either turns in mint or is pretty stable at high speed. Again all this changes with the height of the car so its impossible to give you any permanent "settings" lol

But for info its currently set at -1.75º negative front and -2º negative rear
with front toe 0º,15' in and rear 0º 30' tow out. I run just under ½" longer wheelbase than a standard escort with the fronts pulled out, and the rears pulled back both by ¼".

I couldn't care less where you get your TCA's from mate, as long as they are fitted correct and have our minimum recommended spec of 5/8 x 5/8 rose joint then they should be fine.