That is an interesting point made by DFC about the height of the steering posts & motor mount.I noticed that with the centre post in, my top deck was bowed, surely not good ? I have only run my car on carpet, so handling issues my not show up as much.I plan to run on a good asphalt track next week without the centre post & fitting a 2.0 chassis. Has anyone else noticed the Height issue with the steering posts etc ??? Is it worth filing these things down ?