I'm tired of using El Cheapo mic boom arms whose knobs don't keep the telescoping arms from rotating, whos knobs are hard to tighten and loosen, and generally possess poor quality control. For heavy rigs - like a mid-side pair in a windshield or a single heavy mic - what brands and models have you had success with, specifically for field use (Boom arms, specifically, not the mic stand itself)?
[EDIT/NOTE: This is not about boom poles, but rather a boom arm that mounts on a stand or tripod.]