RE: RX-18
The RX 18 is a good board now. I have used them lots and many people who have DBC3 use them. I wouldn't be so quick to throw it out.
An RX 18 when mated to a DBC3 is a good combo. One of the many things a DBC3 does is add the ability for you to use your Futaba receiver with the RX 18. Again the thing I am pushing is that you can move one DBC3 around a Fleet of RX 18 stock Heng longs, and not have to invest in a new board in every tank. The plug and play DBC 3 requires you to plug in the 3 wire control cable from the RX 18 , and that is it. IF you mount the DBC3 and a Receiver on a small board this unit can be moved around very easily.
A DBC3 cost $9.00 more then that other product and for that 9 dollars you get a fully Tamiya compatible battle system and momentum. So shop around, find out what you need. Lots of options are available,
Cheers