Watched their quotes today - very slow. A good support/resistence trader could make a nice buck gaming the delay...
Yep. Compared to another broker. MB for instance. Dont know much about FXCM execution. At points, price can lag over 3 seconds.
It sounds more like price manipulation or latency than a platform arb opportunity, it might help with holding a trade for a bit longer if their price is lagging though, depending on the trade of course. FXCM aren't renowned for giving money away!