First I pulled apart the roving into little section. I chose to do this by color organizing darker spots and lighter blue sections.
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Pulled apart each section separating the fibers until it's fairly thin. The thinner you make this the finer you can spin your single.
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Use a dowel or pencil. Place it along the bottom edge of the fibers you just separated.
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Roll up the fibers around the pencil/dowel loosely.
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Once it's rolled up take out the pencil from the center. Do not compact the roll.
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You will spin off the end of the Fauxlag. Start by pre-drafting from one end. I organized my rolls in the order I wanted to spin them. This allow you to get long color repeats.
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and this was the single on the bobbin.
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This method works great if you want to spin long draw and you have top or if you want to better control your color repeats on a short-color repeat roving.
Hope this is helpful