Acceptable structure and function assignment depending on values of c-score, TM-score and COACH EC-score

Hi,
if the COACH-predicted EC-score value is < 1.1 then should the EC assignment be discarded ?
Also, say for a given sequence, the c-score is < -1.5 and TM-score < 0.5, but EC-score > 1.1. In this case, should be function assignment be accepted ?
Thanks,
ambarishnag.