I know what you mean Ed, the 5th and 6th wires always seem to be 3 or 4 inches to long. They work but don’t look right.
Ive bought 2 sets of 2612, the 2612 is a cheap set , carquest or standard brand
Used the 6 best of the two sets.They are black at least.
The best fitting set was a orange set of wires that were on the truck when I got it back. But I don't know what they are as I didn't by them and wanted black.
This is for the pre cut sets, not the “original” type cut to fit