What I've seen from pictures of DDQ racing or launching is the furthest extent I plan on taking my MX abilities on a quad. I need to clarify that I do not plan on going to a pro level, or to really start competing at this point. I want a perfect suspension system for the track I have behind my house. The information that I'm gathering from DDQ and other guys here is great for the extreme I want to take it to. As far as the swing arm length, this is going to be quite the experiment for a 10mil super serval on 110. I'm going to roll with JL engineering, a stock length one first. Like DDQ said to me, Its going to have to be the shortest arm I can to handle that motor while I can still take it on the track to have fun with. It will be trial and error until I find one that's just right.