I'm really happy with the Power in 155mm width. I've set it up at -8 to -9 degrees tilt down, lots of saddle to bar drop, and it's comfy even on long distances; rode a number of 200+km rides and a 300km some days ago and it was just fine. I've tried the Power in 168mm width, too; it works a bit better for sitting a bit more upright (had a couple of spacers under the stem initially), but I replaced it with a 155mm version after it broke in a crash. Setting it up with a downward tilt really makes it very natural and comfortable to get really low at the front end.

If you've got hips rocking, or pain on one sit-bone but nothe the other, that's a pretty good indicator of a saddle too high, the saddle might be fine after adjusting it.