Craig, as far as drag related non-symmetrical designs and wondering if this design would veer of to one side, I have been using the stability analysis feature in Rocksim to check the symmetery. I at least hope that is what this feature is for anyways?? On the tool bar under "Rocket" I click "Stability Analysis". I try to keep the blue and green circles semmetrical to each other. At least my best guess and some tweeking seems to do the trick. If I am using this feature in the wrong manner let me know what it (stability analysis feature) is would you. JP

James Pierson
NAR# 77907