I find that I maintain a slightly more upright posture using two poles under a heavy pack. Mine have the angled grips, which I think is useful.

I do make measurably better time swinging my poles along in a good, steady, rhythmic upright stride, rather than the classic heavily laden, hunched over plod, thumbs typically hooked under shoulders traps. Your mileage may vary.

We've seen a lot of fads and fashions, pushed by marketing hype, in outdoor sports, as well as many front-country poseurs in designer labels. But don't let that put you off occasionally trying new things. Some are actual improvements, not just fads and hype for the gullible. For me, dual, three piece, angled grip have long since proven themselves superior to their single ski-pole predecessor and my collection of hiking staffs before that. For you, they may not work. But maybe something else will.

Jeff