Why not use more than one MBAM,Emsisoft Emergency Kit,ESET Online scanner,HMP,Herd Protect,etc. any combination of these would serve you well.Two or three would meet your on demand needs.
I use MBAM,HMP and Emsisoft Emergency Kit on those installations where my real time protection is ESET Smart Security
I use MBAM,HMP and ESET Online Scanner on those installations where my real time protection is Emsisoft Internet Security