I have a question unresolved about that. When i have that path created from a wrist grab (by ex), I move my center trying not loosing that path and the presure on my partners hand increases. Im trying to avoid that pressure but I donīt have any clues of how to do it.
you don't have what Ikeda sensei called "Unity", i.e. you and your partner becomes one unit. there are three pieces that Ikeda sensei normally mentioned: connected, unity, move your inside. they are in that order. see if you can connect to your partner spine. do not struggle at the connection point which most folks tend to do.