Yeah- this is a head scratcher.
1. Only one cam shows galling, all the others are fine (Edit- waiting on confirmation)
2. I would like to see the pistons on that side
3. I remember AJW saying there was an issue with the used heads prior, but that they fixed it- wondering if that was it and it's unrelated- remember the used, rusty water pump they installed.
4. The shop that has the motor is the place I wish I knew about when building the motor. They are top notch and run very fast time attack WRX's
So let's see what Yimisport finds in there. My gut tells me AJW just tried polishing the galling, and it is unrelated to the cam pin break since other journals are fine.