Early FP.
Nashville TN, being a relatively new office is never busy. My wife and I did our FP earlier than was expected. Actually our letter said 3/11/04 and we showed up on 2/11/04. The security guy asked why I was there a month early, I said I did not realise the mistake (actually I was just excited to see the finger print notice so early and did not read the month correctly). He went talked to the people inside and came back and said that if we would wait for 20 minutes (until the regularly scheduled FP were taken) they would call us. We waited, were FP'ed and out of there in 35 minutes. All in all a pleasant experience.
Give it a try.
Good luck !!