Seely just put pieces of comb in the trap and didn't adjust sizes of the trap to account for it.
The question about location is very valid as most of Seely's work was done in Ithaca, NY and on Appledore Island off the coast of New Hampshire. The lucky part for me is that I live on basically the same latitude and experience almost identical winters to those locations. I do not know if a Florida bee prefers a smaller hive but since I am not in Florida I don't really care.
Another point that Seely brings up is that most people believe traps should be placed nearer the ground. His reasoning is that it is because most people see swarms at eye level and often walk past swarms higher up in bee trees. By bee lining he found that the average height of a hive in a tree was actually 21 feet. Much more protection from bears, skunks etc. at that level. We just don't look up enough I guess!!