Make sure you mark the edge with a Sharpie to find the correct angle that your knife is already ground. If you want to re-profile to a new angle, then it is gonna take a lot of work. Once you get used to it, then you can get a "wicked edge".
I still use a free hand Arkansas stone for my knives on a weekly basis, but even up the angles occasionally on a friends Wicked Edge.
I also ran into this issue of reprofiling the edge. If you don't keep the angle that it comes from the factory with then you are in for and hour or so of reprofiling