Yup.
Followed the Haynes diagram to a tee. The coil pack is original, and has the numbers for me (321 465). The old wires had no big issue, but they were the original. I had to pull pretty hard to get them off, so I replaced them anyway, otherwise they looked in okay condition. (They all check through for continuous circuit, but I didn't test resistance or anything).
I gapped each plug to 0.054 (they were correct out of the box). The old ones were worn away to almost double that on 6 and 3, and about .070 on the others, but the condition was good, other than being worn (no oil, no white stuff, etc, but a nice even tan colour).
I used a smear of dielectric grease on both ends of the new wires, the plug threads weren't crossed, nor overtightened.
Frankly, I'm baffled.