I would also like to say good job Castle for the fix on the MMM V3 issue.
I'm running my Hyper 7 with a 13 tooth pinion, 40 series road rage( from my Lst2) due to buggy tires are going bald after running on 4S, 20 tooth pinion,1515 1.5D Neu on 3 batts charge. I am running a 5s Neu batts 5k 30C, with
a 13 tooth due to bigger tires. MMM V3 is holding out for those speed run and just plain having fun. Great job for Thomas at Castle, I vote him the best on customer service satisfaction.