optimal split differential between 50s in 100

what is the optimal differential between the first and second 50 on a 100 yard short course freestyle? The first 50 benefits from the dive and the relative freshness of the swimmer; the second 50 requires two turns and contending with lactate and fatigue. Is it better to go all out and try to hold on, or save a little for the end? Say you can swim an all-out 50 by itself at 25 seconds. How would you ideally swim the 100? Example: 25.5 then 28.5 for 3 second differential and a 54.0 or 26.0 and 28 for a 2 second differential and a 54. Which method do you think is best?
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  • Ah, the one's posted on the Patriot Masters site did not have splits. Official results and splits are up now. They were unofficial before. I am a whimpy sprinter, scared to die like a dog. So my one and only 100 free, my splits were 1.3 seconds apart and I went out much slower than my 50 free PR. So I'm going to attempt to go out somewhat faster next time. But I won't try this tactic for a 100 fly. Too ouchie.
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  • Ah, the one's posted on the Patriot Masters site did not have splits. Official results and splits are up now. They were unofficial before. I am a whimpy sprinter, scared to die like a dog. So my one and only 100 free, my splits were 1.3 seconds apart and I went out much slower than my 50 free PR. So I'm going to attempt to go out somewhat faster next time. But I won't try this tactic for a 100 fly. Too ouchie.
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