FREQUENCY MATTERS.  Destination: Freedom compares train timings of The New Haven Railroad with Amtrak's Acela Express.  The regional trains, no longer hampered by the engine change at New Haven, match the best timings of the Merchants Limited and Yankee Clipper (albeit without broiled scrod in Dreadnought or martinis served at your rotating seat in Flying Fish) and riders have ten through trains daily to Philadelphia and beyond.