Best way to run a Double housing Vertical

[Myrmidon]

After hundreds of applications and sent out resumes, I've finally found a place that would possibly like me to work there. They have a large vertical mill (manual) that they need run. It has 2 spindle housings/vertical rams and Right angle attachments for those rams. Now I've never run a double housed planer mill before, and was hoping someone knew how a double housed mill worked?

I was told at my last job they used to have one, and the idea fascinated me. When you rough with a mill like that I was told you have to have a right hand and a left hand cutter, because if you have both going right or left it will pull the part out of whatever fixturing you have.

They also said I will have 1 week of training before the current operator leaves for another job.

SO I was hoping to find out some information here if anyone had any idea?

[PixMan]

I used to run an old Cincinnati Duplex mill, and it had two 12" face mills on it. Yes, one a LH cutter, the other a RH cutter. That was probably because it had ONE spindle motor driving both cutters at the same speed, same rotation.

A double housing planer mill will have independent spindles though. You could, theoretically, run two RH cutters on the opposing heads, but think about it: One cutter will have the cutting forces pushing the workpiece down onto the table as it should, the other cutter will be trying to rip it off the table and throw in your face.