i don't think there's much experience with this method by now. Take a look at SQ's fine backtesting indicator with 3 pairs. There seems to be some potential when one of the 3 pairs drifts away and gets out of sync..Ignored
Maybe the ea should monitor the stochastic for each pair, and only then automatically open the necessary trades. Wouldn't that be great as an option? Wish I know how to program!!!!