Before revision:  These experimental observations have been amply supported by mathematical modeling of  membrane mechanics and have provided insights into the force-displacement relationships for tubulation. The advances in quantitative biophysical measurements of membrane-protein interactions and tubule formation have necessitated the need for advances in modeling that will account for the interplay of multiple  physics that occur simultaneously.
After revision:  These experimental observations have been amply supported by mathematical modeling of membrane mechanics and have provided insights into the force-displacement relationships of membrane tubes. Recent advances in quantitative biophysical measurements of membrane-protein interactions and tubule formation have necessitated the need for advances in modeling that will account for the interplay of multiple physics that occur simultaneously.