Well done 3hounds, an excellent guide, nice pics too
Hope you don't mind me imparting my grandfathers potting tips

we did this together when I was about 5, ah the memories
As a general rule when re-potting I would give them a good watering first, about an hour before to aviod a muddy mess

This softens up the dirt & any dry roots which helps to prevent root damage during the transplant procedure.

when filling the new pot, use an old pot to make a hole the right shape for the root mass, just use an empty pot the same size and fill around it, lightly firming so the new dirt keeps the shape when you remove the pot, the rootball should fit snugly into its new home, this will also help stop root damage.
I also use the old gardeners tip of putting some brocken pot (or gravel) in the bottom to give good drainage.
Regards
San