Re: To cushions & wedges & the like 🙂
You need to rocker/bevel the back of the heels but leave the vertical height of the heel buttress alone. Also need to rasp the wall out of weight bearing in the heel, leaving only the bar as the weight bearing point.
If you're using boots and pads, use a thicker pad,that really supports the entire bottom of the foot, but you can trim it so that the perimeter fits just inside the walls. Experiment with frog support of different heights and densities as well. Be prepared to change the pads as the needs of the horse change.
There are mark-ups in Lynn and Relevante's Photo album and discussions to go along with those on the Main ECIR Group. Also see Ramey's discussions here: