Eyrie of the Stars said:

Those two + dressage both look decent. One other I'd suggest is Devron + dressage. He is weaker in Int, but if you're adding a D med, I don't think that matters so much as being strong in the jumping traits, especially Scp. That's one thing that's iffy with Sevlo. If you did a D med, I don't think his Scp weakness is covered.