Using external receiver pack for MMM

[luvsrc]

hi guys i just got in touch with castle technical support for my Monster Mamba max is dead also same problems no smoke just got dead with no power,I asked him if i can use an external receiver pack for my second monster mamba max ( i bought two)by disabling it's BEC by taking the red wire out just like the disabling my mamba maxx and so far he said that no problems that he heard of for those who done this,any comments on this guys?