My experience with pre-clearing was much different. I used St. Thomas Jet Center to handle our flight and they took care of everything that we needed. Filled out all paperwork, walked our passengers through the customs area and we completed the whole process from beginning to end in 20 minutes. To me it beats flying to a port of entry and unloading all of the bags for an inspection and then load them back on and then head for home.Unless I am flying to an airport without a Customs office, I try not to pre clear in St. Thomas. We pre cleared down there last month and it took over an hour (everyone is on 'Island time') my passengers were angry about it (we were flying to BOS and could have cleared up there with an overflight permit). If I have a choice, I won't do it again.