I suspect that the majority of those opposed to any form of PR have been and are motivated more by fear of change, compounded by blinkered British exceptionalism (bloody foreign rubbish - I'll stick with what I know, ta very much), rather than any ideological, pratical or constitutional objection to the alternatives.

I agree that any change faces resistance from different sides, and would unfortunately be unlikely to prosper.

Assuming the next GE results in a hung parliament with Labour relying on LD and/or SNP to govern, we shall see how they approach it.

The hybrid system used in Scotland has the advantage of relative familiarity and a proven track record.

The regional list system we have here in Spain (and many other countries) strikes me as perfectly serviceable. I don't see why rotating constituency surgeries staffed by those elected from the list in certain towns within the district wouldn't work. It could even facilitate cross-party cooperation, with different MPs working together with a shared caseworker team on specific issues for constituents.