I have an Alesis 12" drum monitor, wich is the same as the Headrush 112. 3sigmas had just too much high end and had a lof of feedback wich the noise gate couldn't hold that well. Lancaster audios Mesa Powerhouse IR is much more balanced sounding.You rehearse on a PA ?
Still thinking of trying out ML Sound Labs Ampg pack. Does anyone have any comparison? I love their guitar IR's.