Moving feet are an acquired taste
The first 10 mins on them I thought I had made a giant mistake (I spend literaly days building my own)
20 mins later I could walk again and jump
2 days later I recovered from a bad jump that would have had me on the floor with fixed feet
Now I find fixed so restrictive they are uncomfortable
If you try a pair use them for at least 20 mins before deciding or even better a day
Jason