Interesting designs Ed. The guys should remember that if you take a airplane that is flying really nicely and replace the straight wing with a swept forward wing with the mean aerodynamic chord of the swept forward wing at the same location as the non swept wing that the airplane is still going to fly really nicely. There are things that a swept forward wing does differently at the extremes of the lift curve slope and also in yawing maneuvers but in general for normal flying around you won't notice much if any difference. I do think they look pretty ugly (sorry Ed) so don't consider them when designing my own airplanes.