Can there be some other FX Broker more liquid (solvent) compared to IBFX which has a MT4 platform?

I know that FXCM currently has MT4; however, I'm scared to use it since they do not allow for demo testing on their own MT4 platform. Has anybody used the MT4 platform in FXCM and IBFX? If so, how do they compare?

It appears that the Excess Net Capital in FXCM and IBFX has been diminishing. This relies on the info from CFTC. The problem is that it's always a few weeks behind. For example, the most recent period available is April 2008. I'm very worried about the protection of my funding investment. I would love to know what their Excess Net Capital is because of May 2008. Ideally, I'd love to open with Oanda; however, they don't have a MT4 platform and their leverage simply extends around 50:1.

Walt