100 SCY FREE Breathing Pattern/Strategy

Looking for recommendations on a breathing pattern for the 100 Free scy. Two ideas I had were... The first 50 will be faster than the second 50, would it make sense to breath more on the second 50 - the thought being, a breath at a faster speed will have more of a detrimental effect than a breath at a slower speed due to higher drag. Alternatively, it's easier to restrict breathing early on in the race so would it make sense to breath more as the race progresses?
Parents
  • 100 Free is generally 52.5 to 54.0 50 Free is generally 24.0 to 24.3 Age 40 (not sure why this is relevant to breathing pattern) Training, 5 days/week, 18K-20K. Used to do 3 masters workouts and 2 solo workouts, typical masters type sets. Recently modified solo workouts to be a mix of all out sprints and recovery.
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  • 100 Free is generally 52.5 to 54.0 50 Free is generally 24.0 to 24.3 Age 40 (not sure why this is relevant to breathing pattern) Training, 5 days/week, 18K-20K. Used to do 3 masters workouts and 2 solo workouts, typical masters type sets. Recently modified solo workouts to be a mix of all out sprints and recovery.
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