Have been looking into pros/cons of eSignal Vs Tradestation in anticipation of an 'upgrade'. (....I miss having L2 sometimes. Have it with equities.)
They told me this feature was an area they were very keen to improve on too. ...This was months ago. From my understanding they were using MBs data , but weren't necessarily going to hold back from adding other avenues/capability over time.
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Bundy's status today: "Waiting..."