I tried WH Smith's in Malvern on the way back from work but no luck.
Smiths in Beaconsfield had their deliveries today, Friday (£3.99) and poked 5 copies half hidden on the bottom shelf.
The staff there don't seem to know what new mags are 'in' and as the Mag is 3/4 size it is easily hidden.
My Round Britain Trip gets a nice airing