340 Static Compression Numbers and Test Procedure

340inabbody said
I am not experienced in piston wear inspection. Do these images confirm detonation? Or is this normal?

View attachment 1715456375

View attachment 1715456376

View attachment 1715456377

View attachment 1715456378

View attachment 1715456379

View attachment 1715456380

Looks suspicious. Can you post some clear, close up pictures of several of your spark plugs?