MAREH MIKOMOS:
SEE THE “SHEORIM HAMITZUYONIM BIHALOCHO” Hilchos bein hamitzorim, he brings down the chsam sofer,noda biyehuda and others that are of the opinion that only the issur of GILUACH is only “taspores harosh” and not “taspores hazokon”, since the latter is something done on a semi daily basis. He is not so lenient for shevua shecal bo, though. Look it up, and see for yourself, I am not a posek.