First off, know that these boots run large. I wear a 10.5-11 street show, a 27.5 in head alpine boots, and I had to get the 26.5 in this Scarpa. My first impression skiing these boots in bounds was "holy crap I can't get out of the backseat"... It was scary, even with the forward lean adjusted all the way forward.
After some research (no thanks to the manual) I found that these boots have a walk, and TWO forward lean positions. You must be flexing the boot hard forward while flipping the switch, to lock into the forward position. After finally getting them dialed in I found them acceptable in terms of lean. Even with the stiff tongue they are, not nearly as stiff as my head rs100 with intuition liners, and this demands a different less aggressive type of skiing. For touring, I found the softer touring tongue to bind and bite into my shins, so I have to leave the stiff tongue in for touring.
Note that this is my first pair of AT boots, and I come from a racing background, so take that into consideration.