If God determined what out choices will be before the foundation fo the world, then we do not have a measure of free will, FK. We are (pre)destined to think and act as God programmed us. In your theology God lets us "feel" that we have free will, but in reality it is a deception. No matter how you turn it around, the Reformed God is either creating evil or deceiving.
It depends on how one defines "free will". If what is absolutely real to us counts for anything, then we have some measure of free will. If God's perspective, which we cannot experience, is the only thing that matters then we do not. Notice that for your side's version of free will to be "real" it necessarily means that God follows the leadership of man. That would be true by definition. God sits back and watches who will accept Him, and then He writes their names in the Book of Life, etc. That does not describe to me an all-powerful and sovereign God, it describes a God who is weak, who mostly follows. An all-powerful God who just let things play out however they did would be one who cared comparatively LESS about His creation than a God who directed what happened.