I haven't made any suspension changes. Haven't really rode it enough with the sumos. It runs pretty good just with the swap though. It might could use a little fine tuning, but it runs fast and smooth. I wouldn't recommend raising the shocks though, going from a 21" to a 17" wheel really brings that front down quite a bit already.
I already switched it back to the dirt tires because I have a trip coming up off road that I'm going to be gone for a few days so I need to make sure that I have it ready. As soon as I get back I would like to get some street rides in.