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Ok, if it's a misfire in cylinder 1 try swapping the leads over. Take the lead off of one and swap it with two. If the misfire stays with cylinder 1, you have eliminated the leads. I would suggest changing the plugs before the coils as it will be cheaper for you. I hope this helps in a small way.
I swapped coil 1 & 4 for some second hand ones out of another car and it made it better, not great because ideally I was told they need to all be changed at once so I don't think it's the leads.