Re: When do you know you are good at ukemi?
I think ukemi is the hardest thing we do in aikido.
How long it takes is a combination of how smart and flexible you are and how much you can tank.
After a while you can be ippon seoi nague by a horse and landing on stairs made of compacted gravel without loosing the reins.
For me the worst ukemi to take is jije garame koshy, iriminague koshy and ganseki otoshi