Alan, you and the team do a fantastic job in getting these events organised, it is without doubt one of the best value days anywhere.
It is bad manners to throw empty cartridges on the ground when bins are provided on a sporting layout, indeed if you do this where I normally shoot you will get warned and asked to pick them up.
What I found real interesting was someone who was not at the event, and per you post, has never shot with you/us chipping his 2p in.
Keep up the excellent work, look forward to seeing one of these events nearer to home ;-)