Heel lifts for the wrong person can result in the lower leg tipped forward, the knees bent more to create balance, and the hips bent, again to balance everything. A few benefit from heel lifts. Many more heel lifts are sold than this.
For more shaft angle, see if the cuff alignment adjusters are on both sides of the cuff, and if they can both be moved the same amount to tilt the cuff forward. As always, get the cuff alignment on the lower leg correct first, then see if the shaft angle can be changed. Here's how one semi-custom boot maker tests skiers for forward lean:
I like more delta...heel higher than toe. I put 1/8" plexiglass shims (& longer screws) under some of my heel bindings.
For more shaft angle, see if the cuff alignment adjusters are on both sides of the cuff, and if they can both be moved the same amount to tilt the cuff forward. As always, get the cuff alignment on the lower leg correct first, then see if the shaft angle can be changed. Here's how one semi-custom boot maker tests skiers for forward lean:
I like more delta...heel higher than toe. I put 1/8" plexiglass shims (& longer screws) under some of my heel bindings.