Brian, A LOT of guys rag on the FRPP wires. I've had multiple sets and they never arced?
I do however like the Taylors better because they carry much less ohms per foot. The 409's were uses on my supercharged application and needed the extra insulation for my headers.
I'd swap the wires in my case mostly for the looks. If I pick up a few hp (which you would not feel) so be it.