The Fast Ball Activated Circulating Sub Mitigating drilling risks before they get out of hands means the difference between a well that is constructed efficiently and one troubled with non-productive time (NPT). Risks are magnified in complex applications such as extended-reach drilling (ERD), tortuous well paths, and need for spotting lost circulation material (LCM) or placement of cement plug. SWiFT activation system allows driller to operate the tool efficiently and effectively. Restrictive BHA limits the flow rate and annular velocity required to clean the hole during drilling or displacement operations. BHA restrictions can also limit the size and concentration of LCM and wellbore strengthening material needed to seal troublesome zones. SWiFT helps driller reduce risks associated with hole cleaning through large circulating ports.