I loved the KTM but it just wasn't the bike for me. I've had a few xb's and it just wasn't as responsive in the corners so I wasn't as comfortable on it. It's been raining a lot here so I'm still fighting to get my break in done on the SX but I also have a Dean Adams exhaust and ECM coming which is supposed to cure a lot of the grumpiness and just make the bike a monster. My cousin has a Tuono and it has its quirks too. I'm not sure the move I would make if I was paying for a brand new one but I'm more than happy so far with the SX, granted I've been riding Erik's creations since 2003 so you could say its a biased opinion