I'm very grateful for Mulberry Customer Services for supplying the information below.
|Paper size (Pocket)||120x81 mm||120x76mm|
|Paper size (Personal/Agenda)||171x95 mm||149x105mm (A6)|
|Paper size (A5/Planner)||210x148mm||209x147mm|
|'3 ring spacing'||19mm (3/4")||19mm|
|Ring Spacing between rings 3 and 4 (Pocket)||19mm||13mm|
|Ring Spacing between rings 3 and 4 (Personal/Agenda)||50mm||38mm|
|Ring Spacing between rings 3 and 4 (A5/Planner)||70mm||50mm|
Examining the figures for the A5 size and drawing the locations of the holes on a plain sheet of paper. The only holes that are in the same location are holes 3 and 4 on the Filofax line up with holes 2 and 5 on a Mulberry sheet.
As you will see holes 1 and 6 on the Mulberry set are very close to holes 2 and 5 on the Filofax set, this might be a problem with long term use.
Going back to Quo Vadis for a moment, their Timer 14 (Pocket Filofax) and Timer 17 (Personal Filofax) use exactly the same hole spacing as Filofax so no need to re-punch. However, their Timer 21 (Filofax A5) uses slightly different ring spacing. The '3 ring spacing' is still 19 mm, but the distance between holes 3 and 4 is 50 mm. This results in the 3 holes being offset from the Filofax 3 holes as shown below.
As you will see the holes are equally spaced between each other. In use I've not experienced any 'hole tearing' with the QV Timer 21 inserts when used in an A5 Filofax