A rotating blade tip clearance system for a gas turbine engine, comprising: a control ring carrier for retaining a control ring therein, the control ring carrier defining a centerline axis and having: a connecting portion for connecting to a case; a retaining portion radially inward of the connecting portion, wherein the retaining portion includes radially inner and outer diameter sides defining a retaining cavity therebetween for retaining a control ring therein; and a spring component connecting radially between the connecting portion and the retaining portion, wherein the spring component isolates the retaining portion of the control ring carrier from the thermal deflection of a case and assists in keeping the control ring carrier aligned about centerline axis during thermal deflection; a control ring within the retaining cavity of the control ring carrier, wherein the control ring has a different thermal response rate from the control ring carrier so that the control ring thermally deflects slower than the control ring carrier, thereby controlling the rate and/or extent of thermal deflection of the control ring carrier; and characterized by an outer air seal engaged with the control ring carrier, wherein the control ring carrier thermally isolates the control ring from the outer air seal; wherein the control ring (119,719) includes multiple arcuate segments (719a, 719b) joined together to form the control ring, wherein joints between the multiple arcuate segments are each secured with a radially oriented pin (720,920); and wherein the control ring carrier includes multiple arcuate segments (905a, 905b) that join together to form the control ring carrier, joints between the multiple arcuate segments are each secured with a radially oriented pin (720,920). a control ring carrier for retaining a control ring therein, the control ring carrier defining a centerline axis and having: a connecting portion for connecting to a case; a retaining portion radially inward of the connecting portion, wherein the retaining portion includes radially inner and outer diameter sides defining a retaining cavity therebetween for retaining a control ring therein; and a spring component connecting radially between the connecting portion and the retaining portion, wherein the spring component isolates the retaining portion of the control ring carrier from the thermal deflection of a case and assists in keeping the control ring carrier aligned about centerline axis during thermal deflection; a connecting portion for connecting to a case; a retaining portion radially inward of the connecting portion, wherein the retaining portion includes radially inner and outer diameter sides defining a retaining cavity therebetween for retaining a control ring therein; and a spring component connecting radially between the connecting portion and the retaining portion, wherein the spring component isolates the retaining portion of the control ring carrier from the thermal deflection of a case and assists in keeping the control ring carrier aligned about centerline axis during thermal deflection; a control ring within the retaining cavity of the control ring carrier, wherein the control ring has a different thermal response rate from the control ring carrier so that the control ring thermally deflects slower than the control ring carrier, thereby controlling the rate and/or extent of thermal deflection of the control ring carrier; and characterized by an outer air seal engaged with the control ring carrier, wherein the control ring carrier thermally isolates the control ring from the outer air seal; wherein the control ring (119,719) includes multiple arcuate segments (719a, 719b) joined together to form the control ring, wherein joints between the multiple arcuate segments are each secured with a radially oriented pin (720,920); and wherein the control ring carrier includes multiple arcuate segments (905a, 905b) that join together to form the control ring carrier, joints between the multiple arcuate segments are each secured with a radially oriented pin (720,920).