I used boots with thick pads inserted , 24-7 for a couple months (cleaned often, with foot powder to avoid fungus). I haven’t read back far enough to know if you’ve tried this, just throwing it out there. Six months in, with all clear on laminitis from vet, mine still needs boots on all the time for a few days after trim.

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Pat
August 2020
Metro Vancouver BC Canada
Case: https://ecir.groups.io/g/CaseHistory/files/Pat%20and%20Willow
Photos: https://ecir.groups.io/g/CaseHistory/album?id=253325