Just to let you know, you and another designer are both working on revisions, and with an hour left (and I have to head out to an appointment...blah blah blah), I extended the contest by 2 days (the minimum I could do). I am sensitive to the concerns you mentioned above, so I'm keeping an eye on derivative concepts. I just wanted to make sure that I had enough time to give feedback to the designs I am trying to decide between and for them to respond (if they can/want to). Just a heads up.
Leland