Only somewhat related, but do we know how Orkney and Shetland vote separately ? Is the LibDem base evenly distributed or more on one of the archipelagos ?
IIRC in the 2015 close shave (The Lib Dem majority was only 4% or something) the word from the count was that Carmicheal won Orkney but lost Shetland. Although given other results I imagine that wasn't due to innate partisanship but because Danus Skene, the SNP candidate, was based in Shetland and Carmichael is based in Orkney, and if there is one place in the UK where people are most likely to vote for local candidates for local people it's Orkney and Shetland.