So I?ve got a issue with the tcc locking and unlocking repeatedly around 55 when trans is hot. It appears to be commanded on the whole time. It don?t do it above 60-65. It?s got an ac delco reman valve body. Im going to pull it and install the sonnax tcc reg. Im temped to turn the force motor screw a quarter turn while there so my question is, should this be done in the tune if wanted instead?