In reply to An Triubhas: I live in the Lake District and have done all of the scrambles mentioned so far in the thread. Don't want to be too negative but the 3 ridges you've mentioned are the best true ridge scrambles in the Lake District. Scrambles like Cam Crag ridge and Intake ridge are good, but are ridges in the very loosest of terms linking areas of rock on grassy spurs. Easily escapable, and not striking lines. Pinnacle Ridge on St Sunday is OK, but a big step up from the grade you are after. It is also a lot of walking for a relatively short section of technically interesting ground.
If you want proper airy exposed scrambling ridges you'd be better heading to Scotland where there are so many classic ridges that would fit the bill.