I think only Mark would know the answer to this one because it involves knowledge of exactly how Blitz sends triangles to be rendered.
I would assume there would be no benefit in Blitz unless your graphics driver was clever enough to do something about it.
Normally if you want a card to render triangle strips you have to tell it that you are rendering strips.
You are right about using fewer strips by using a hidden triangle to stitch 2 strips together, I remember reading this before, I think they called them 'degenerate' triangles.
You could try testing it to see, but I would not expect a performance gain in Blitz.
I would assume there would be no benefit in Blitz unless your graphics driver was clever enough to do something about it.
Normally if you want a card to render triangle strips you have to tell it that you are rendering strips.
You are right about using fewer strips by using a hidden triangle to stitch 2 strips together, I remember reading this before, I think they called them 'degenerate' triangles.
You could try testing it to see, but I would not expect a performance gain in Blitz.