I am not familiar with the "Material" you sourced. We used the material I found at Work in a Mil-Spec atmosphere (Commercially available) and found it to be superior to the OEM materials.
If it is acceptable for a Submarine, I think it would out perform the OEM stuff.
No Seam, WHY would Vendor provide a inferior product, OH, Well Cost.
You Do NOT want to depend on some Self Sticky Crap and Seam when used on your INVESTMENT in Original glass.
Don't even get me started on the China Steel replacements, Are the Bends Accurate, Are the drilled holes properly spaced, on and on
DIY your GM parts when able!
We as a Group NEED to keep sharing Tips, Trick, Methods and Sources - This is healthy for the Hobby