Here is my experience:
I had Mc Gaughys 2" spindles and it rode pretty good. I had them for about 8 months and like it on my 20s.
I went to a DJM 4/8 drop, and I went with lower control arms for those. After about a month or two my ball joint boots were shot and it started to ride realllll bad.
I decided to go turbo and needed to raise it up. I installed 3" lower control arms with the 6" out back, and the front rode even worse. It still rides bad right now. I know its probably my tie rods giving me the bump steer. But still
I'm gonna bag it soon, but I shoulda stuck with spindles from MC G