I purchased and installed a cloth top on my 99 miata from Duetto.  I did it
myself and it still looks great.
The installation part of the instructions could use some work, just remember
how it went apart and use your common sense.

My concern now is the material/seam that goes across the car about three
inches above the rear window.
My #3 bow  (cross bar) rubs against the seam when raising and lowering the
top.
When lowering the top down the bow goes smoothly over the seam and the
stitching.
The problem is raising the top.
The bow goes 'against the grain' with a very likelyhood of fraying the
material that's past the seam and putting additional pressure on the seams
themselves.
Has anyone else made this observation?
Is there anything I can do to minimize the chaffing and rubbing?
Could frabic glue be used to hold down the material beyond the stitching?
Any thoughts?

TIA,
- Pat