[Brumos RSR]

Yes but what would the body weigh without the chassis mounting plates with screwed inserts?

So without the important parts that are integrated into the body to mount it, really? The factory mounting system on the 250 SWB ( as you made me think about it) is the ONLY Area71 car I have where I could create a system without using my normal method, it would weigh just over 14.2-14.5 grams this way. In this proxy series, I would consider my new mounting system an unfair advantage. With the way I’ve ALWAYS mounted my bodies, it would weigh 17-18 grams.  Keep in mind only 1 Area71 car has run in Graham’s proxies on a brass chassis, it finished mid pack in class.