I like my JB Fab twin sticks, met the owner in person. I bought the aluminum knobs to go with the sticks and he even turned a matching knob to install on my gear banger. His twin sticks are very nice, good welds, nice bends, nice boot with stainless trim. The install was easy but I did it when I was replacing my tunnel so I might not be the best judge of difficulty. The adjustment on mine is that both adjusters are almost screwed all the way down and they index well.
I also bought one of their longer clutch rods for my body lift and like the metal bushings.