I agree that Bourenmouth and only seems to do well with the Med style routes , niche one off charters and fly cruises etc
Wroclaw with Ryanair operated for the last 2 summer seasons 2012 / 13 which saw loads in the 7 months run at about 82% and 87% respectivly ( no idea about the good old yield though ) but was lead to believe it only stopped this summer beacause of the availabilty of Ryanair aircraft