With the above setup the car oversteers when exiting tight turns so i'll move to 5/7/1-2.
BUT it was accelerating very hard out of turns and it would jump fine.
The brakes seemed to be on the soft site but i haven't used the car a lot so the brakes might get better.
As far as durability is concerned...
NO PROBLEMS at all and it took some hard hits.No play in the arms or hubs.
"poinas2" have you been using a 14T CB or a 13T?
With the 13T and the stock 44T spur it's impossible to set the mesh right.
The engine can not be pushed far enough to reach the spur correctly.