"Scott" wrote in message
...

I'm actually campaigning for an Oyster type card for Scotland. (I say
Oyster type as I know it will be ITSO compliant instead). I know
there are practical difficulties about unresolved journeys. Will I
get charged a full single fare to Thurso is I omit to touch out? That
might alter my attitude!

Oyster style PAYG (with max cash fare deducted on touch in and rebate on
exit) over anything larger than a well defined urban area isn't really
possible - as you rightly point out.

Paul S