That would drive me crazy, could you at least thread them the other way through the brackets so they sit next to each other? Re-useable ones tend to have a rounder head but usually need to be around a larger diameter to work. What is it you’re trying to achieve?
Smaller black zipties always look better. I don't like c-clips, they rarely fit properly and either fall off or the cable slips through leaving a massive loop at the derailleur end.