So, who has done this before ?

A quick Google search suggests not many people have done this before.  Or, perhaps more accurately, few people have published anything on-line about riding this particular coast-to-coast route.  A number of people have done similar distance routes like Barmouth to Yarmouth, St Davids to Yarmouth and the Bobby on a Bike team have done Aldeburgh to Aberystwyth a couple of times and are planning it again in May 2013

This route looks good on first glance but take a closer look and it includes some major trunk roads including one section of the A12 that's hary enough in a car let alone on a bike.

Then there's the girls-on-a-bike who apparently rode F2F on a tandem although there's no indication they actually finished and they state that it's 450 miles so they may have taken a 100 mile detour.

Amazing what you can find on the Internet, eh?

Mike