I appreciate the reviews here, great thread. I too have issues with Moog, the boots more than once. So I avoid Moog, but I do have several of their parts still.
Pro Forged sound really good for quality. I gather most components are imported, no matter where they are assembled. Taiwan is the one import source that has known high quality, and all others are suspect or poor, such as China. Pro Forged has 99% of their products made in Taiwan, Moog is they said China parts.
I like the look of Mevotech TTX UCA's, I just installed them. I received their outer TRE, much larger than stock joint, they look good.
But I will need 4 BJ's for my Moog CA's of my Mountaineer. The boots are all bad, though the mileage is less than 20k miles. So I'm looking at BJ's from Pro Forged, TTX lower, and maybe the better level UCA by Mevotech(they make two levels). The whole arm is under $10 more than the BJ, so how tough is it to R&R an upper BJ?