I did not take SL4 up on their offer since it really doesn't relate to my current study. When I reviewed their website and spoke to them, I realized that the "system" takes outside data feeds and adds their data to it and then let's traders interpret the results with no system indicators. This would mean that 10 different people could see 10 different things on the same screen. I am researching the "systems" that actually give buy and sell indications and the chat rooms who give real picks (at this time anyway). SL4 sounds like a lot of work, but it may be worth it...we'll see in a year or two when they have enough people using it.