I just solved the underweight problem I have with my car.
When I added some parts (LW brakeadapter, first and second gear adaptor) and the capricorn diff internals my car dropped from 1536 to 1496.
But someone on the Xray T3 topic posted a link to a shop which sells Tungsten weights for RC cars.
So I ordered 11 ounces of it straight away.
I ordered 1 set of ''underbody weights' and 2 sets of 1/4'' cubes.
This is the site where i ordered them:
Hope they arrive soon, will post some pics when I got them in and mounted.
I will cut away the sides of the Brass Lipo tray I already have and glue the cubes behind the Lipo, just in front of the tank.
The plates will be used underneath the battery, and for side to side balancing.