When I was buying my boots the bootfitter suggested I try it.
You step in, put the strap under the outside shell and pull it tight, then you buckle after. Seems to hold my foot a little better.
Yup I definitely have skinny legs and feel this helps out a bit.
Care to explain how it helps make the boot softer? I dont quite understand that one. If anything wouldnt it make the boot harder to flex?
Another vote here for replacing the usual velcro strap with an elastic Booster Strap...two layer Standard for most skiers, three layer Expert for bigger, heavier, or hard charging skiers. Yes, strap inside the plastic of the front of the cuff, or cut that plastic away.
I hate the tops of my boots to be tight. I'm am a pro ankle flex type skier. I often don't even bucke the top buckles at all.
That said, most folks I know prefer the booster strap inside the shell right on the liner. I'm thinkng about cutting mine off altogether.
Try using a booster. It works even better. You can get it snug so the tongue is right on your shin, but you still have give in the elastic.