Great choice, very nice truck. Start off with the Base setup and work from there. Remember that Tires will be your most important thing when trying to get it to work at your track.
Currently in my Truggy i'm running the stock setup with these changes:
7/7/3 diff fluid(front to rear)
42.5Wt oil in the front shocks, 40 in the rear. Front shocks are stood up as much as i can get them. And wing position is laid down and all the way foward--actually only using 2 screws to hold it on instead of 4, furthest back holes on the wing in the furthest forward holes on the mount.