I understand, been there. I am not a scooter user but I don't think any common scooters will go 6mph and if they did your mask would come off and your regulator would free flow. I can walk at 4mph with a little effort but I can't swim as fast as I can walk.I wasn't exactly kicking against it per say. More like keeping myself in one place for a few seconds to capture a picture of a hawks bill. And even at that it was a rough few seconds kicking.