Nancy Reading wrote: wondering at what stage to pick the fruit. I'm also wondering whether to sow or eat them! I can do both of course, since the pips will be rather large to swallow.
Each berry has several pips so you will not need many berries to get a good little potful of potential seedlings. Also, mine has berries too so I can send you some seed if you would like it.
As for ripeness, leave them until they are very dark red if the birds will let you... when you pull them off the tree, they will come off the stalk with an almost "punky" feel when ripe.