I know I toasted a MM on 5s, but it was also a neu motor that I was having cogging issues with already. I am gonna try it again, this time with a 9XL and soldered motor wire connectons. We'll see what happens this time. I think the combination of Neu and 5s wasnt good for the MM. At least it wansn't for me.

OK, this is what I know works, but first my Muggy has, what appears to be, non standard gearing in the diffs. I think that most have 13/43 gearing, but mine has 11/45. I guess it's because of the huge tires that the truck comes stock with.

When running 9/46 with 40 series mashers and an 8XL, it ran pretty good. Cogging was almost non existent. If it did cog, it was only for a split second then the truck would take off. The motor was obviously running hotter (though not over heating) than the esc, so I decided to try 10/46. It started cogging and ultimately toasted the MM. I'm guessing that the 9/46 with the mashers was right there on the edge.

I put in another MM and went back to my original 5S setup that was working. I didn't want to go back to the 9/46 with the mashers, since that was obviously on the very edge. I went back 9/46 with the stock 40 series losi tires. Again, no problems. These tires weighed 2 ounces less per tire than the mashers and were slightly shorter. With the 9/46 with either set of 40 series tires, the torque was just plain stupid. I could pull wheelies at will and it almost didn't matter how fast I was going.

I also tried 10/46 on a set of bowties with ofna half offset wheels. No problems, although again, the motor getting hotter than the esc indicates that the motor is still a bit undergeared. These tires weighed four or six ounces per tire less than the mashers, I don't remember which; but there are what I think is significantly shorter than the 40 series.

I'm so sick and tired of trying to get into a high end brushless system (Neu and a controller) that I'm thinking of just sticking with the MM and getting a 9XL.

I'm thinking this because I was having all sorts of over current troubles with the MM in the Muggy with the 7XL causing it to cog when I was running 4S. When I went to the 8XL and the same gearing, all of my troubles went away. When I went to 5S, the 8XL came alive. Now I'm thinking that going with a 9XL will allow me to put some gear on the system and not have an over current problem. Maybe I'm off base here, but seem to recall someone at Castle referring to the MM as a 1000 watt system. Perhaps, you just need to stay around that with the combo of voltage and current and all will be well. I don't know. Can anyone shed some light. It still baffles me that the MM will even run on 5S.

I really don't care about going fast with the Muggy. All I want is a solid 35 mph for the track and have the motor run cool.

On the plus side, as long as I kept the gearing down, the esc and battery didn't break a sweat.

Depending on what Mike decides that he's going to do with the Compro that I sent him, I may be waiting a while for a "better" controller, so the 9XL is looking very appealing.

What do you guys think?

BTW, I'm running a thunderpower 1010C charger/balancer combo, which lets me set it to charge the battery to 95% capacity and then cut off. This is what I'm doing since I heard some say the the MM acts weird on a fully charged 5S pack. I don't even know that it's necessary, but I've been doing it as a precautionary measure.

I heard from Tim Mohr if you run more than 4s on th MM to turn off the bec in the software and run a receiver pack that may help with some of the issues.

I run 5s on my MM in my girls maxx, her truck is about 11lbs. I too cannot run a fully charged 5s on hers, it'll go for a second then stop. So at that point I have to turn the MM off, then on. I pick it up and run it in the air for a few seconds, then she is good to go. But I need to drain the batt a little first. Other than that, I run 5s on a 10xl in her truck and it seems to do well. I run two 30mm fans on her esc though too. It's geared 14/51 mod 1 with stock diffs right now. But 5s so far has not been an issue on the MM esc.

Actually, I have found that anything over 2s should be using a receiver pack or UBEC (preferred). Read this for details.

I agree with you Brian / Brain. I use a ubec in my RC18T even on 2s...LOL, but my little esc stays much cooler.

my MM does the same thing with a fully charged 5s pack. I am running it in a losi 8 with a 9xl motor. I cant complain though since it is way out of spec. Other then that it does very well. Runs hot but what can I expect from a controller made for 10th scale and 3s. Now they just have to get us the MMM or tekin r1mt.

I agree, or a nice updated Quark would be good too!

I would be fine with that too. anyone know when the quark plasma is going to be out?