My criteria is Unfiltered Tick after reliability and then price. I am presently getting rt Zen & NT free through my broker and hear that IQ has finally also unfiltered tick too, anyone with experience on IQF care to comment please? Most of the time due traveling overseas and not having the best of wide band, during early opening Zen falls behind Vs. TS and IB whom both packet the tick to a couple of hundred Millisecond or thereabouts. Any comments on Zen with a good connection during the opening? Does it keep up?