It's a bit upsetting that while lobsters HUGELY increase shieldball effectiveness, they also will randomly damage or destroy parts of it.

From about half way I lose essentially no units in the ball to attrition, but lose three Aspis to a jump at 29:40 and another 1000 metal worth on the jump back over the hill. The jump at 31:37 does another bunch of damage.


Unrelated: There's also the oddity of the shield-piercing Gauss at 33:56, which passes right through a 700hp shield to kill an Aspis.

Unrelated: I've also just realized that removing Owl will buff Racketeers against shieldballs.