Just wondering on anyones experience using MarketDelta and trading the SPI. Curios as to what you have found to be the best data provider. particularily interested in anyone using the IB feed to power MarketDelta with the DTN Market Access option. Very happy with IB as a platform and if this could be a "one stop shop" in terms of exectution AND data, would be very chuffed to axe my current data provider. Also interested in comments on IQFeed and CQG feedback. Muchos gracias.