I will point out that the "twisting" of the rubber bushing is a calculated factor in suspension and honestly bushing design in general. It's a sort of "pre-load" to help the suspension return to a neutral position (at least that's the story per text books and suspension dynamic papers). It's why almost all vehicles will tell you to torque most suspension components like that with the vehicle resting on the ground.

All that being said, I've been pretty happy with my poly-bushings in my LCAs, I haven't had any noise or issues; the only real thing I have noticed is that they don't move as freely as they did when I first installed them (i.e. when I am unbolting the LCA to clean my heims on my suspension lift they take more force to push them down than they used to but still negligible in the long run.) I honestly get more noise from the heims in my suspension than the poly bushings in the LCA, Sway Bar bushings and links.