I need your opinions on PMP practice exam systems

[FloridaPM]

I'm creating a PMP practice exam system. I think its different to what's out there at the moment for a couple of reasons:

1. It will increase your chances of passing by telling you which areas of knowledge you need to work more on.

2. It will predict when you should be able to take the test and pass it.

I would LOVE to hear your opinions of practice exam systems. So if you could take a short survey I would be very grateful (and you'll get chance to sign up for the FREE beta trial).

Here's a link to the survey - http://www.surveymonkey.com/s/WB6QTF3

Thanks!