The Elite model with the double bar has better visibility than the Test model. The reason for this is that the upper bar is in the same position as the single bar in the Test model, but it's set back.
As its set back, it's out of your field of vision and therefore gives you an extra 4mm of vision area when compared to the single bar model.
Because the Elite model has 2 bars, it gives the impression that the bars are higher and therefore restrict vision, whereas it's actually the opposite.
Double Bar Design = More Vision
I hope this makes sense.