Regular fins are flexible. Monofins are hard and they keep your feet and legs together. You can't bend your knees as much, if you were tempted to, with a monofin. Because of this, monofins work the core more and simulate and promote the underwater undulation better. At least that's what I think.
I should also clarify that I don't swim fly with my MF, except for a one arm fly drill. I use it primarily for underwater kicking or shooters, 25s, 50s, every once inawhile something longer. Plus, it's just fun to swoosh through the water like a fish.
However, as ande would say, you have to practice SDKs without the MF too. He has a great SDK and he never uses fins or MFs.
Regular fins are flexible. Monofins are hard and they keep your feet and legs together. You can't bend your knees as much, if you were tempted to, with a monofin. Because of this, monofins work the core more and simulate and promote the underwater undulation better. At least that's what I think.
I should also clarify that I don't swim fly with my MF, except for a one arm fly drill. I use it primarily for underwater kicking or shooters, 25s, 50s, every once inawhile something longer. Plus, it's just fun to swoosh through the water like a fish.
However, as ande would say, you have to practice SDKs without the MF too. He has a great SDK and he never uses fins or MFs.
