I am trading through direct Oanda connection. Before this new version came out (MaxRequests could not be adjusted back then) , even just trading Z12 system alone, I would get request limit exceeding error. That's why I set my MaxRequests to this very small number.
This morning I encountered Z12 running really slow when Z7 opened trades. Then I closed Z7, and Z12 was then back to normal behavior.
Currently, as I am writing this post, both Z7 and Z12 are running normally, where Z7 does not open any trades.

Thanks.