The ball search will not dislodge a ball jammed onto the orc pop-up.
It ends up being tight enough that the coil cannot raise it.
I had to almost "dig" it out to free it up.
Maybe put a hat (I kinda like this or goggles (mad max anyone?) or horns on the orcs or something to keep the ball out of there.
It could be tested with a spare figure and some sheet metal screws or gobs of J-B Weld applied in various areas until it seems right and the ball pops out instead of into the hole.
Pehaps there is too much clearance between the top of the figure and the metal flap?
The figures are just round enough on their heads to allow a ball to rest there while the mech drops into the PF.
What about washers behind the orcs heads to bring them forward a little so that the ball wont go in too deeply?