Ooooh. I have been contemplating doing this with my Belgian mare. I kind of feel like it's taboo to clip her feathers...but that looks GREAT! So much cleaner & easier to take care of, but yes, the loss of the "handle" for picking up her feet would probably do me in!!!
She looks great! I understand your pain as 3 of our sport ponies have long feathers that are always disgusting and gross. People usually make fun when they wear jumper boots and look silly. When we bodyclip, we leave the feathers on (required by the owner). I was so tempted to clip them off, but I couldn't I don't have any issues with staining, but I used Orvus shampoo on them and wash them every day (comb them, too). I know this sounds extravagent! But, the result are ponies with soft and white feathers.