There is great variety in making the single changes in each Peal, which may be made at divers places (viz.)
The first single change in any Peal may be made the second time the whole Hunt leads after the last bob-change of the first or second double bobs, at which places the whole Hunt, half Hunt, and quarter Hunt, do alwayes lie together before the bells, and the single change is to be made in third and fourths places.
The first single change in any Peal may also be made the second time the whole Hunt leads after the first or second single bobs, at which place the whole Hunt and half Hunt do alwayes lie together before the bells; and the quarter Hunt lies behind, therefore it must be made between the two hindmost bells.
Or if the first bob in any Peal is a double bob, then the first single change may be made the second time the whole Hunt leads after the third double bob in that Peal, at which place the whole Hunt, half Hunt, and quarter Hunt do lie together before the bells, and the single is made in third and fourths places.
Or if the first bob in any Peal is a single bob, then the first single change may be made the second time the whole Hunt leads after the third single bob, where the whole Hunt and half Hunt do alwayes lie together before the bells, and the quarter Hunt behind, therefore the single change must be made behind.
The first single change in any Peal may also be made either at the first, second, or third single bobs, at which places the whole Hunt leads, the half Hunt lies in tenors place, and the quarter Hunt in fourths place, therefore it must be made behind.
The first single change in any Peal may also be made the next time the whole Hunt leads after the last bob-change of the first or second double bobs, at which place the whole Hunt, and quarter Hunt do alwayes lie together before the bells, and the half Hunt in fourths place, therefore the single change must be made in third and fourths places. And in most Peals, the first single change may be made the next time the whole Hunt leads after the last bob-change of the third double bob; and in some Peals, the first single change may be made the second time the whole Hunt leads after the third double bob (nothwithstanding the first bob-change in that Peal is a single bob, as in the Eighteen-score treble, second and fourth before set down) which falls out according as the first bob change happens to be made either nearer the beginning of the Peal, or farther from it; for in some Peals, the bells will come round in course the next time the whole Hunt leads after the last bob-change of the third double bob. And in many Peals, the bells will come round at the fore-stroke the second time the whole Hunt leads after the last bob-change of the third double bob, &c.
There are two single changes in every Seven-hundred and twenty, which are alwayes made when the whole Hunt leads, the last single change in every Peal being constantly made just Eighteen-score changes from the first; for making of which, observe these Rules.
If the first single change (in any Peal) is made the second time the whole Hunt leads after a double bob, then the second single change must be made the second time the whole Hunt leads after the third double bob, accounting from the place where the first single change was made.
If the first single change in any Peal is made the second time the whole Hunt leads after a single bob, then the second single change must be made the second time the whole Hunt leads after the third single bob, accounting from the place where the first single change was made. Or if the first single change is made at a single bob, then the second single change must be made at the third single bob, accounting from the place where the first single change was made.