The original version was designed with XBTUSD on BitMex in mind, this new premium version deals with BTC pairs on Mex, or equity that is valued in USD(T) like Bitfinex. It also includes fees within the risk percentage, and you can set what percentage for fees based on whether you are using a market order and paying the Taker fee for entry, or a limit order and receiving the Maker rebate, though I suggest assuming a Stop Market gets hit for dealing with worst case scenario on total risk.