-7 hereriding extremely aggresive.
It's all about weight distribution... Even a -2" pole hurts my back so I choose to change the weight distribution in other ways that are unfortunately more difficult. Shortening the pole is typically the easiest and quickest way to change the way the ski is weighted. If you need more than a foot taken off the pole length, you are either massively compensating for something else or you are riding extremely aggresive.