I have a pair of boots that last season (Australia) I noticed started to move on my lower foot, causing the ski to move unwantingly - ie they'd begun to 'pack out'. This was despite the buckles being cranked up as far as they could go.
I'm a bit frustrated as I had them shell fitted so the length is right and so too the width. I've double checked this and width and length still appear to be ok. I've got Superfeet foot beds which take up a bit of volume as well. I've had <20 days skiing with the boots.
I'm an advanced skier with in excess of 500 days skiing.
I'm looking at ways to fix the problem.
I believe the problem is to do with a low foot volume from the instep forward.
I was going to raise the bootboard by cutting out various thickness inserts I could place between the bootboard and the liners. I'd experiment with the different thicknesses, to see which one was the right one to use. This is in an attempt to get the top of foot, closer to the buckles as well as reducing the volume.
Anything else you can suggest? I'll do this prior to going to a boot fit specialist, but was intending to go to the boot fit specialist as a last resort.
Any advise / suggestions would be appreciated.