There is a list of recent additions to the collection, as well as an index listing all the compositions by length.
If you do choose to ring any of these I'd enjoy hearing about it. My email address is firstname.lastname@example.org. Feedback on what does, or does not, work well in practice is always helpful for producing better compositions in the future. And when the information is available, I do try to include details of the first performance of compositions in this collection.