Already done mate
. Just got some 1.5mm home so I have to get some 2mm instead but i sits nice. I have added some weight in form of a brass plate under the Lipo. 1.5mm. 87grams. Then I used Associateds thumbscrews and posts for securing the pack. I run saddlepacks so I have a plate made out of CF on top of the pack. It is located just infront of the shocktower and the esc is placed on that. Did this on my former B4 and that also made the car better in left to right weigth distrobution. Can show pics when I get home from work this weekend. Have no spelling aid on this computer
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Look under "i made this". I also have a brassplate located under the car. Prototype only.