Originally Posted by s.sciame
Hi Tom! Those 2.5 miles were in open water? Are you sure that the negative split was a matter of breathing and not better navigation/trajectory? If so, that's great! #3 seems a good compromise between symmetry and getting enough air.
I think the breathing was the major factor--it's a straight line out-and-back course I swim, right near shore, so navigation is simple enough. The #3 pattern does give me a faster tempo, so I suppose that's it, mainly.