Eh, tempting, but...
having done it two times (once I thought was 'enough', then a two year hiatus, and the second was 'really enough'!).
It really depends on the weather, and your physical condition.
One both occasions, I had a lift from Chepstow to Poole.
I did intend a third go (I think last year), but the forecast was atrocious for Porkers, and having had a rough (but good) Brevet Cymru, decided to call it a day.