I've read the Team Pro is supposed to have thicker leather, so it takes longer to break in. Some people say those take 1,000 miles to break in. I'm not sure where on the B-17/Team Pro line the Swift falls.
Two notes. First, adjustment is critical for a Brooks saddle. I prefer two-bolt seatposts for the ease in making minor adjustments (without starting over every time you unscrew the single bolt on the other design). Second, while many tourists prefer Brooks saddles - half or more, in my observations - not every bottom matches up with a Brooks.