I tried a Turnigy (which I bought from you) in my Tiger for 2 battle events and promptly removed it afterwards. All I could get out of it were what I describe as "delayed" starts and stops, instead of a realistic inertia effect. I spend a great deal of time fiddling around with it and could never get it to work to my satisfaction. When I got a decent effect for forward motion, the reverse motion was still too jerky and fast or I'd get the reverse ok, but forward then had way too long of a delay before any movement occured. It was anything but easy to adjust for me. 2nd time I battled with it I had a run away full throttle condition occur after a direction change 3 or 4 different times causing the tank to go crashing into an obstacle on field.

After all that stuff, the Turnigy now sits in a bag collecting dust.

The device was designed to slow the action of retract landing gear in RC aircraft, not as an inertia effect generator in tanks. It didn't make the cut for me. A true inertia electronic device, designed as such, would be a welcome addition for the Tamiya models.