I tried a bunch of them in my tanks a few years ago, and ended up selling them or giving them away. My experience was that the instructions were no help. I did finally manage to get them to work, but the inertia was too exaggerated for my taste. I was also demotivated to install the Turnigy chip when I realized the the MF-06/DMD T-08 combination has inertia built in from Tamiya already.