IT isn't the spreads, or the extra spread and bigger stop/loss you need to take on a G-stop loss; it is the charting and data.
With IG Markets, I originally intended to get in there to trade the futures index's through CFD, and wanted to start using a system which involved volume analysis. But IG Markets won't show you volumes!
How are you supposed to analyze pressure, exhaustion and suply, if you can't see volumes?
Relying on Patterns and regular indicators can only take you so far and you stand to love a bundle on volatilit alone, but without volume there is no clear indication on the reason for a move.
Next time I try futures, or index trading, it will be through IB with the full outlay of margin from my own pocket. At the very least you avoid spreads, and can see volumes for a proper analysis.
IG Markets seems like a huge gamble to me now. Not saying I am the king of T/A, nor the Jester.