the ping pong strategy is this what C.A.T. makes, but  C.A.T. has no server for history and no RSI, MACD etc.
so you can win or loose if you are in the right or wrong direction
but
with leonArdo we have a server with history and so it is possible not to make only a simple ping pong, it can be a enhanced ping pong in the right direction -> up or down as showed somewhere here with crossing EMA
like this was
MtGox MACD/EMA trading bot (Tobli)
or
chrome butter-bot