They're taking over my local track as well. There are 5 or 6 of us running them currently.
I had a chance to do some tuning last night and this car is amazing. Went from stock to black springs all the way around with Losi 45wt/37.5wt front and rear and it was pretty dialed, thanks Raul!
The harder you push, the harder it digs. The one thing I did notice is that ride height makes a HUGE difference with this car.