QTR-Quadtone RIP

Can someone with more experience using Mac - QTR & Print-Tool clarify that my workflow seem reasonable as I am fairly new to using QTR having been using the ABW driver for several years.

I haven't even looked at soft-proofing yet but my understanding is that when / if I do, I would choose the QTR_Gray_Matte_Paper ICC profile as the device to simulate in Photoshop under Proof Setup if I am to get the best screen to print match.

1. Scanned black & white negative brought into Photoshop embedded with Gray Gamma 2.2
   
2. Image edited in Photoshop in the Gray Gamma 2.2 colour space
3. Image duplicated, flattened and resized for output With R3880 @ 360ppi
4. Image loaded into Print Tool to be printed on Matte Paper

Print Tool Settings

1. Print Color Management : Print Tool Managed
2. Profile: QTR_Gray_Matte_Paper
3. Rendering Intent: Perceptual
4. Bit Depth: Auto 8/16 bit

QTR Settings

1. Printer: Quad3880
2. Mode: QuadTone Rip 16 bit
3. Curve 1: My custom curve I have made and installed
4. Paper Feed: Sheet Feeder
5. Resolution: 1440 super
6. Speed: Bi-directional
7. Black Ink: Matte-Ink
8. Advanced Adjustments: Disabled **

** With Advanced Adjustments, I understand that I could lower this value if I felt the paper was not capable of holding the level of ink in my custom curve, say I felt the deepest shadows were a little blocked ?

Thanks

Ian