I run your same set up in 2 vehicles...as stated above...no worries
1. MBX-6 T8 1900KV, RX8 ON 4S
2. MBX-5T 1520, MMM ON 5S
3. MBX-5 ONROAD CONVERSION 1515, MMM ON 5S
4. MRX-3 ON ROAD CONVERSION 1512, MMM ON 6S
5. TEN T 2650 T8, MMP ON 3S
thanks guys , i got it all figured out . just had to go to rc documents link and do a lil reading . the wiring was ok the way it was set up from factory on the mmm and 9100t , it was my m8 that was giving me the problems. just had to change some of my settings and everything is o.k. now