My horse just got trimmed a few days ago and the trimmer was happy to see how the hooves have improved. My horse now has a little more concavity and the hoof seems to be growing in stronger, although only time will tell if that will last. They certainly aren't perfect by any means, but we are seeing small improvements and he seems much more comfortable. Personally, I've noticed a big change in my horse's way of walking over gravel and other harder surfaces in the last month. He no longer seems to be 'tip toeing' across the surface and does not seem bothered by it at all.
I've decided to look into scoot boots and re-measure in two weeks to see if the size 9 would be an okay fit. I'm also looking at the hoof packing, hoof Armour and hoof casting. I think they would be a good thing to have on hand. The easy boots had lots of nice options, but unfortunately don't come in a large enough size.