I pull 14,000 pounds (GVWR) with my BD3. One of the things I like about it is that it breaks down into 2 components. One (strong) person can handle the individual pieces so it can be removed if you want to use the entire truck bed for something else.
Note the BD3 does not come with an air compressor - you must manually inflate, But normally that's a one time thing, once you get it where you want it.
I do think the bottom line question to be answered is how soon you might be getting a heavier 5er. If you get the TS3 now and get a new trailer in 10 years, you may decide you want a new hitch anyway.
I really like mine.
Tim B.