This is a pivot block?
What is heviest brass or steel?
what i hade in mind is a thin plate to put under the lipo pack to still have the
Weight of a 6 cell pack. if i put in a lipo today i will change the CG due to
the lipo almost is 120g lighter then 6 sub-c.
So a plate that is thin and fits in the bottom of the tray to get a beter CG with lipos