I think there was always the expectation that whatever was submitted (volume wise) would be swapped and returned. That was based on comments made earlier in the thread.
I had thought that there might be several people who would end out doing more - especially as the numbers were creeping higher and higher. An idea might be to divide those extras amongst those people. Not easy to explain - but the gist of it is that they get duplicates (or more) from all the people who did extras - rather than one whole batch of extras from one person. Gosh I hope that makes sense.
On a side note - I'm really excited that my blocks have been received. The postal shop told me they would take between 2 to 5 weeks to get there. Whew - made it in time :)
Norbana - your house must be looking very colorful.