I recently bought an Airtronics MX-3 Radio for my Genesis to replace the Impact 3 Radio. The Impact 3 radio has either 50:50 or 70:30 throttle/brake travel and I found no problems getting the brakes powerful enough to stop the thing on the 50:50.
The MX-3 radio only has only 70:30 and I find I just can’t get the brakes to work at all really, even with the brakes dragging on idle.[

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Does anyone have any suggestions as to what I can do to get them to work properly?