Advantage of BK 9918 over MGM120?
 

Is there truly any difference in these controllers? Given there close price range and one being available and the other not i'd like to get the scoop.

the 9918 can handle higher cell count....

I've posted this in another post as well, but here's a copy:

In my own experience between the BK Warrior 9918 and the MGM Compro 12012 I would choose the 12012 for the following reasons.
- the 12012 is much smoother on take-off (literally NO cogging for me) while the 9918 does have cogging, even if it is minimal
- the 12012 appears to have more programming options and is friendlier to lipo batteries

If you are going to run more than 12 cells, you will of course need to consider a higher cell-count controller than the 12012.

My opinion is not the be-all-end-all by any stretch, but it comes directly from my own experience.

For the same money, and not having a need for more than 12 cells, I would choose the MGM.

For 12 cells or 4s Lipo, the MGM is by far the way to go. I have used both in my Rustler with a Feigao 12s on 4s Lipo, and the MGM was just so much better. The programming is great (once you get used to it), and it can handle more amps with a lower price. Also (as noted), the cogging with the MGM is so low, that it almost seems to be sensored. One thing I have noticed with my [brake fading] Warrior 9918 is that it seems to decrease radio range. With the MGM, I can easily go down my street (~300ft, can hardly see the car), but the 9918 seems to only go to 150ft before it starts glitching. I have tried twisting the battery wires, moving the receiver and antenna away from the 9918, etc. But since this glitching disappears with the MGM, I think it is the 9918. BTW, I am using a custom-made 6v BEC unit with the 9918, and the MGM's BEC. I am not using the MGM right now since it got damaged by water and I need to send it in.

Even on 7 cells (haven't tried 6) there is no cogging on my 12012-3s. It also runs my novak motor just as nice as my feigao. So not only does the mgm work for larger scale models, it works for most other applications as well. I think all mgms are smaller than all the warriors also.

The warrior are the best high voltage controller for the money, but as the other posts indicate, the MGM controller has more programming options, including the ability to safeguard the LiPos and is smoother on takeoff(marginally). The warrior controllers only have a couple programmable features vs. many for the MGM controllers. I would bet the 9918 warrior could handle as much or more amps as the 120 amp MGM, though, simply because it has a heat sink. For 12 cells or less, the MGM is the winner IMHO, but for higher cell counts the warrior is the way to go.