It's exactly one and a half teeth out!! This works out to be 15 deg on the cam, which is 30 deg on the crank, exactly as you worked out with the degree wheel!!
I got a new key and blimey, it's bloody tight......... You had mentioned this as a problem so I hope I have the problems covered even if it needs aa bit of tweaking and tuning!!
I can't get her to run properly after the re-build and would like to talk it through when you have time. Can you give me a call when you have five minutes? I'll be in all day today, but prolly out for a long walk tomorrow, as long as it doesn't **** down!!