Hah! Those were a bunch of work. There are only two of us in the shop. My son has said, "Never again!" I'm 70 years old and I too have all the iron up my nose I care for.

Come to think of that; is it 'safer' to inhale iron-dust or aluminium dust?
Recall to have read somewhere that aluminium could cause (?) Parkinson perhaps, or Alzheimers maybe, I forgot...

Would one charge more to port iron heads or aluminium heads?
Iron taking longer to remove or aluminium for the hazardous health dangers....?

C'mon Jim........ I see those posts over on fabo about you guys doing the LAX/MAX SB heads.

Looked like more than a bowl blend going on there