I see 2 possible explanations for the low transfer rate on the right:
A/ rightwingers had a low understanding of #SupplementaryVote
Ɓ/ Conservatives reluctant to transfer to the extremist ReformUK, and/or RestoreGB voters wouldn't xfer to ReformUK
These 2 explanations are not mutually exclusive. It's possible that some righwingers didn't understand the 2nd pref, while others did get it, but chose not to transfer.
Either way, this is a strategic weakness on the right of #UKpolitics #ukpol