How to wrap a label to scale around a cylinder using photoshop 3D tools

I am trying to super impose a label design onto a jar label. But I'm tired of using the warp tool, and I need to make use of photoshops 3D tools.

The photo already has an existing white label in the picture, and my label design has a white background.

Once I have my design wrapped around a 3D cylinder to scale, I want to disable all texture effects, shadows, light effects, only leaving my 3D rendered label. I then want to be able to layer style Multiply the 3D rendered layer so the label black artwork appears perfectly over jar.

I use SketchUp a lot so I understand 3D a little, and know how to control the 3D plane, position, and objects.

What I can't seem to understand is how control the cylinder to scaling and disabling effects in Photoshop 3D mode.

So here is my jar with label.

So I then measured the label height and jar diameter and worked out the circumference.

Label Height: 35mm
Jar Diameter: 66mm (207mm Circumference)

I created this label artwork (66mm x 207mm) in a separate psd document and placed the artwork in my jar file as a smart object.

So I then go to...

Which then creates this clever wrap...

But I don't understand where the dimensions of the cylinder come from, my understanding was that it would use the layer dimensions to create a cylinder based of this.

The problem is if I scale the cylinder manually by pulling the object toggles, it just squishes my artwork...

So the questons I have...

1. 
   

   How do I control the cylinder height and diameters using integers so my 3D object scale is exactly as my jar.

   
   


2. 
   

   How to control the scale of cylinder when creating the mesh from layer.

   
   



3. 
   

   How do I disable all my 3D effects (shadows, lighting, etc).

   
   

Thanks in advance for any tips.