On the matter of perceived fourths, it should be remembered the the first Great John of Beverley (Taylor,1900, 82.5", 113.0.21 ) was rejected and replaced with the larger bell (JT 1901, 87" 140.3.1) because of the intrusive note. It was retuned (106.3.0) and is now at Downside as Great Bede. George Dawson