Really? We're using the same one as before, right? I had always mounted mine under the fender in plain sight, but I mounted the transmitter in the holder the same way as if it was on top...so it would be "pointing" up. Was I just lucky that it worked?
Or was it my magnetic/repulsive personality that caused it to work... ;D ;D ;D
Well the problem only appears when it is a fast group of riders, which explains why you don't have an issue. :P ;D
But really they were designed around our standard installion method to work optimally so moving them can
cause issues. One of which is verying that ESU is mounted on bike, ie standard place to look. CF will not always keep them from working seems the Cf exhaust of the Duc 916/748 was more an issue than a single sheet of CF as we see a lot of CF bodywork appearing and that does not seem to cause a problem.
If you think you may have an issue just make a quick check at practice that you are being timed. Transmitters are required at all times bikes are on track to verify that all systems are working correctly so that when race time comes you are scored correctly. Scoring moniters the strength of your transmitters and will call for a new transmitter to be installed or location moved when they detect a problem.