I don't use parameters, I prefer this way, it works but does not switch most of the time, even when it receives error getting json data and gets 0,000 value it keeps mining

 { "algo": "x11", "folder": "D:\\data\\MinerControl165\\sgminer", "command": "sgminer.exe", "arguments": "-c x11FF.conf", "usewindow": true },

what is "btcfee":2, ?