Wells perhaps you remember CK.91 Bf 109G-2? It too had the flaps size of B-17 wings. It's the LW conspiracy I tell you.
Try diving with the 109 though, in case you are about to overshoot just dump 10 deg flaps to maintain current speed, even at vertical dive and full WEP. If you want to do that Tom Cruise Top Gun Stop(tm) drop full flaps, just make sure you have the harnes on or you'll fly outta the windshield.
//fats
