It's fine that your farrier started the corrections and that you have been doing more of them in between trims. That way, any corrections that are made don't get "grown out" between trims.The heels have not contracted, there is just more of them exposed after having been buried under the backs of the frogs. The frogs have also not retracted and actually appear healthier than they did in Feb: the butt cracks have closed significantly; the frogs are not being pulled down and under the heels as much; they are firmer and more distinct, with a better-defined central sulcus. With the feet being smaller than they were in Feb, the Clouds he has been wearing are likely too large now, so may be twisting when he moves, which will cause rubs. Where are they rubbing? You can stick pieces of duct tape over areas that are being rubbed to protect them from the boot contact.
There are two 5-30-2021 sole views labelled as LF - looks like the one that has the striped lead rope in the top, left corner might be the RF sole?
The white line separation is something that has been there all along and won't completely go away until the hoof capsule grows all of it out. The tighter the trim gets, the more separation that gets trimmed away at ground level, which prevents the contact forces from tearing the damaged laminar connections even further. Sole depth builds gradually once the trim is tight. Toe length is better but still too long horizontally, which will stretch the sole and elongate the frogs. Keep working to back those up. Hinds also need toes backed more - RH more than LH.
How is his comfort when moving in padded boots? If standing on a hard surface is uncomfortable bare, make sure he has a boot or just a pad under his feet when standing on those types of surfaces for now. When working on the wall flares, rasp them from the top, rather than the bottom and leave a bit of the thin wall length in place in the quarters. In a healthy foot, the walls comprise no more than 10-15% of the weight bearing. When they are compromised, that amount should be even less but he will need to become accustomed to that change. That's where padded boots come as they will both support and protect his feet until they are strong enough to do the job on their own. His frogs, soles and bars are not used to being the primary weight-bearing structures as when in shoes, his walls were the part doing the majority of the work.
Need to find a boot that fits well now = fit snug in the heels so you can't turn the boot once it's seated on the foot. Then experiment with padding to see what he finds comfortable. He needs a lot of "miles" with the pressure-and-release of padded comfort, making sure that all landings are heel-first. If he's not landing heel-first, then you need to experiment with what type of padding he needs to achieve that: thicker, thinner, gel. wool, etc. What works this week may need to change next week.
Lavinia, George Too, Calvin (PPID) and Dinky (PPID/IR)
Nappi, George and Dante Over the Bridge
Jan 05, RI