brought to attention on the RFL forum:
New news blip from Robot MarketPlace home page:
"Great news for robot builders using, or thinking up upgrading to, one of the Spektrum 2.4Ghz radio systems! You are no longer limited to just using the old DSM1 BR6000 receiver to be legal in most robot combat tournaments. If you are using the DX5e, DX6i, or DX7 transmitters, you can now safely use the DSM2 5-channel AR500 or the new DSM2 6-channel AR6110 receivers, which is a nice small fit even for smaller robots. We have thoroughly tested these, and they will actually failsafe properly with all popular speed controllers!"