These are two different phenomena: Galloping is a steady-state of large amplitude motion, however, there is little data or experimental evidence on the actual number of galloping cycles. The AR Twister is designed for a low-frequency conductor, you get only one cycle every 5-7 seconds depending upon the span length. Because twisting interrupts the conditions that lead to galloping, there are no cycles to get underway. When ice sheds in large chunks, it causes the conductor to jump or gallop. Ice shedding is an intermittent phenomenon and its effects have a negligible effect in causing galloping.