Minni n' Geordielass, Aye, Station Cafe is the eatery and a great one at that,
everyone is encouraged to ride within their own comfort zone, the link to the route map in the previous post is to help everyone get an idea.
To rendevous is much better than not arriving, a good rider imho will ride at whatever pace they are comfy with and my intention is to ride within and around the speed limits keeping the back bike in sight as long as the average speed doesnt inconvenience other road users.
Basically if you can maintain the prescribed speed limit when its safe to do so you shouldnt have a problem, see how you feel when we get to Keswick Station Cafe and let me know what you think.
Like you say, play it by ear, I get a lot out of encouraging folks and hope your "could be up for it" turns to a "see you Sunday"...