Q-Line is just as Russky described- like a wire, and feels weird. If your line lengths are off even a tiny bit, you will feel it. While I liked the line itself, I found them to be a serious pain to unwind and was glad to go back to regular lines.
The best thing about them is the high pitched singing sound they make when flying.
People are less likely to cut you off if you sound like an airplane going by.
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