My horse that foundered has a prescription for pads: nothing at the toe, 3 degrees at the back - for now.
He goes out to pasture (yes the vet knows that and wants him on our 22 acres of hills with his herd mates) everyday wearing a grazing muzzle and boots with the pads in them. <---the thinking behind that could be a whole 'nuther thread and it is working.
I cut two small piece of duct tape and affix those to the back portion of the pads, in the frog area.
I slap the pads on the hooves, then put the boots on.
The pads are right where I "slapped" them when he comes in at night. The boots and pads come off, until turnout the next day.
Thankfully he already had mats in his stall which has also been of immense help.