Too many swimmers can’t create speed with a gallop stroke timing...

They don’t rotate BACK to the non-breathing side.
While a gallop stroke is going to be asymmetrical with timing, it shouldn’t be asymmetrical with rotation.
You can see the rotation that occurs as he breathes to his right.
Watch how rotates all the way back to the left after entering with his right arm.
A lot of swimmers just come back to flat, and that significantly compromises their speed.
Just make sure they’re rotating back to their non-breathing side to ensure they’re swimming as fast as possible.
Stroke counts aren’t static.
What’s possible changes based upon the set swimmers are performing.
More fatigue? The counts may go up.
Less fatigue? Lower counts may be possible.