The option was made available to me to ride today even though it is an official rest day, rationale as follows:
Tomorrow is a monster of a day and the suggestion was to ride the first part of tomorrow's stage today, the rest day, and then the remainder of tomorrow's stage tomorrow. So, in effect riding 2 shorter stages rather than the one long stage.
I thought about this overnight and made the decision, rightly or wrongly, to rest today and then to ride tomorrow's stage as per the official tour schedule tomorrow.
I am a bit of a purist at heart and I just felt I would be deviating from my original plan to ride the route as the pros do by carving up the big stage and that in the future I would regret my decision, it had the potential to niggle away at me.
I'm sure in the morning I will probably wish I didn't have so far to ride but my decision is now made and I'll stand or fall by it. If I make it to the end of tomorrow's big stage I am sure I will be pleased that I made this decision, I'll just rest up and hope for the best.