A few more cases of double-wide strips with two fibres, moving the fibres around to try out different solutions. Again, an 8cm-wide strip, 1cm thick.
The results:
+/- 3.8 cm: 8.9% each fibre
+/- 3.0 cm: 9.7%
+/- 2.0 cm: 10.0%
+/- 3.0 cm: 9.8%
Thus, it's pretty much insenstive to fibre position, although my prediction is that you do slightly better if you put your fibres about 1-2 cm from the edge of the strip.
Fibres at the very edge of the strip: (from previous entry):
Fibres at +/- 3cm.
Fibres at +/- 2cm.
Fibres at +/- 1cm.
