If you are going ALL OUT, i.e. "race pace", how will your 200 LCM time compare to your 225 SCY time?
200 m is about 218.72 yds, so 225 yds is about 6.28 yds longer than 200 m. How much time this converts to depends on how fast you are, of course, the faster you are, the less extra time the extra 6.28 yds will take.
BUT.
A 225 SCY has 8 turns whereas 200 LCM has only 3. For example, for my backstroke, I estimate that each turn cuts about 1s off my total time, so the extra 5 turns save about 5 seconds. If you have better turns, you'll save more time.
It looks like the two factors approximately cancel for me in backstroke. I haven't done the analysis for other strokes yet. I'd be interested to see results (and/or speculation) for other swimmers.
