Separate SCSI controller for each disk?

I have a Hyper-V VM which is a File Server.  I have several large pass-through disks to present to this VM.  I have two options:

1. Create one virtual SCSI controller and attach all pass-through disks via this controller.

2. Create a seperate virtuaal SCSI controller for each pass-through disk.

Will option 2 give better performance?  Any other thoughts?

Thanks