It makes sense. We know that UKIP voters will vote tactically and vote Conservative. If we are to stand any chance of winning, we have to do the same.
For those who worry that voting tactically flies in the face of party loyalty, their beliefs and their principles, I urge you to use Swap My Vote. At least then you will know that your vote will stay true to your party, even it is cast in a different constituency. Click this link:
Breadown of votes in Camborne and Redruth 2015 election
Breakdown of votes in St Ives and Penzance 2015 election