Yes I agree that Sh Swing is Trend Following one it may get whipsaws in range bound market. But as a follower of system one needs some set rules to take the trade or not.
I can show lot of examples when a system gave wonderful trades after some whipsaws.
Yes from judgement and knowledge one can skip such trades if one has such capabilities then a simple MA cross over system ( with any Parameter) would gave very good profits then sh swing .
From Layman Point of view one good trading system should have clear cut rules to handle such difficult situations.
So we need some additional conditions to improve the system. other wise any serious trader who is following the system would stop trading and the trading system would hang in midway