All I am trading TNA/TZA using a mechanical swing system that employs daily close data. My stop loss currently consists of a 2-day "time stop" where I dump the etf after 2 days of lower closes. I also recently added a hard stop of 10% to the system strategy, although based on trade history, I do not expect the 10% stop to be activated very often. I am trying to determine whether I should use a 10% trailing stop instead of the 10% hard stop. DOes anybody have any comparison info between these 2 stops? I am figuring the answer is actually very case by case, but figure it is worth asking about. Any thoughts appreciated.