LabRat - 2016-10-24 11:56 AM The name of the tree comes from the shape of the front end or swells. A BW barrel tree from Bowden, Timberline, or Precision can literally be any specifications that you want on the bars. A BW Jeff Smith can be drastically different from a BW Tod Slone. Tree makers build trees to the saddle makers specs, so your question is impossible to answer on how a BW tree fits, since there is no industry standard. A better way to answer your question is how do Jeff Smith saddles fit. If it's a production saddle, the specs should be the same from saddle to saddle. If it's a custom Jeff Smith, it's anybody's guess what tree dimensions were requested from the original customer.