I am very very surprised nobody has commented on your discovery. You can take it which ever way you like but 9.87654321 is decimal.
Now as to Dr T maybe he is on holiday in France or the Med sunning himself and having a margarita on a beach but he is not on deck here. Good luck to him.
Look I would probably like to add to my essay 'From the Rollights …. been looking at it and thinking about your contribution. The thing is you and I disagree re Thom as I think 2.75 is much more likely but that is ok differences make for thought which is good. Let me put it to some people.