Can't say about other pullers, but I tend to keep the feet together to make sure I'm not kicking. The only times I've noticed fishtailing is when I'm tired and falling into (previous) bad habits.
I'm going out on a limb here, but I think Lindsay's point is that significant fishtailing is a sign of poor balance/technique, and that you'll impove your swimming more by fixing the problem instead of masking it (by kicking harder).
Let me make an analogy. I have a twenty-year old bike. Turns out that I had snapped the back axle, so I was grinding metal. In the short run, I can pedal harder to compensate for the friction, but I'd be much better off replacing the axle to reduce the wasted energy. (I found this out the hard way, while my car was in for repairs.)
Can't say about other pullers, but I tend to keep the feet together to make sure I'm not kicking. The only times I've noticed fishtailing is when I'm tired and falling into (previous) bad habits.
I'm going out on a limb here, but I think Lindsay's point is that significant fishtailing is a sign of poor balance/technique, and that you'll impove your swimming more by fixing the problem instead of masking it (by kicking harder).
Let me make an analogy. I have a twenty-year old bike. Turns out that I had snapped the back axle, so I was grinding metal. In the short run, I can pedal harder to compensate for the friction, but I'd be much better off replacing the axle to reduce the wasted energy. (I found this out the hard way, while my car was in for repairs.)
