So, because we're getting closer to having Bolts in driving condition, we'll very soon be in the place where the wedge is in place and it's technically "battle ready" (in the sense that it could enter an arena and last 3 seconds), I'm looking at what to add to the outside of the wood as an extra layer of armour.
In another build diary, I remember reading something about 10mm HDPE being pretty good against most axe/hammer bots. Would this be enough, or would we be better spending the extra cash and weight on metal armour? If so, which metals and how thick do you recommend?