yeh you know it's all setup right when all it wants to do is go upwind or downwind

never the less a couple of tips to make the transition are as jsnfok said get adjustable harness lines so you can lengthen them to bear away and go down wind or drop the boom a tad on fresher days, dropping fin size isn't really the first thing i would think about unless you just want to cruise and do more reaching
last thing i do when it's survival is unhook for the bear away to get the body right away from the rig and stop that catapult feeling, once on a broad reach course and feeling safe again hook back in, probably just means that my adjustable lines don't go long enough
would be nice to hear some of the pro's thoughts