Originally Posted by
serpens
The closest I'll get to Scotland is Hadrian's Wall (sigh, maybe next time). I'll plan on getting two eSIMs so I'll have the (perhaps) better coverage in England.
Having more than one eSIM shouldn't be necessary. I don't think there's one mobile network with appreciably better coverage than the others in the UK (EE, O2, 3, and Vodafone).