
Originally Posted by
sweatypowderpig
just sharing my recent experience in case it helps anyone else.
pro patroller, ski ~180 days a year, 180# skiing weight with gear, III+ skier and I'm very aggressive with my turns, lots of pressure on the front of my boots.
Lange RX 130, zipfit world cup liners and a custom orthotic. I had been experiencing a lot of slop, lack of ankle hold and heel lift since last year. tried to adding cork multiple times which would help for a couple of days and then it would get sloppy again.
the season ended prematurely as we all know, so the can got kicked down the road to this season. ended up replacing the zipfits. they had ~750 days of hard, full-days of skiing on em, plus all the walking around we do. they no longer held their shape in the vertical plane and were collapsing down into the boot.
this helped things out with most of the slop, but not all of it. the first day in the new liners really aggravated my Haglund's deformities and they were very tender. I removed my spoilers to lower my heels a little further into the shell's heel pocket and the second day wasn't as painful, but there was still a lot of movement in my heel. I paid very close attention to what i felt going on so I could relay it to my bootfitter. my thoughts were: heel punches to accomodate the haglund's deformities and I had a sneaking suspicion that the ultimate cause was the shells. they felt sloppy and soft right off the top and required what felt like a lot of dorsiflexion before they stiffened up. this caused too much movement of my ankle and caused my heel to lift.
Sure enough, I tried on a new pair of shells and the difference was night and day. I'd say the old shells had ~550 days on em. new shells, two new heel punches along with two small navicular punches to match the old shells and a bit more cork and they ski like a dream.
Two takeaways:
1: if your shells are on the older side, don't discount the fact that they may be finito. my plastic was in great shape with no cracks, but they just didn't offer the support of a new 130 which created a cascade of other issues.
2: really try and pay attention to what you feel going on. what conditions/situations cause/aggravate it. it's invaluable to help your bootfitter diagnose what may be going on and how to fix it. if you can't describe accurately and in detail what is going on, there's not much a bootfitter can do to help other than throw darts at a wall and see what sticks. in my case, no amount of liner and shell work would have fixed that fact that my shells were simply no longer up to the task.
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