I agree with what everyone is saying and will add that as a kicking drill it's a great conditioner. When I put fins on, either zoomers, split fins, or just standard fins you really feel it both in your heart rate and your VO2. In fact when I do these, I feel the same sensations as when doing VO2 Max swims. The body is really working hard and you always have to strive for the perfect extention with your arms while the legs work as hard as they can.
I agree with what everyone is saying and will add that as a kicking drill it's a great conditioner. When I put fins on, either zoomers, split fins, or just standard fins you really feel it both in your heart rate and your VO2. In fact when I do these, I feel the same sensations as when doing VO2 Max swims. The body is really working hard and you always have to strive for the perfect extention with your arms while the legs work as hard as they can.