The Mepps Black Fury Mouche is exactly the same as the Black Fury only with a colored fly on the treble. Based on the practical experience of many anglers, the use of baits with a fly can both increase and decrease the effectiveness of the Black Fury. For example, for trout, it is preferable to use lures without a fly. At the same time, when fishing for perch and pike, the fly will be very useful. It serves as an additional stimulus and improves the overall balance of the lure, which is very desirable for slow trolling in water bodies without current.