I could be wrong here because I cant really see what you have done but you might have put the gear too far ahead .. I have had a bit of experience with the landing gear on the Pulse . As you have found they nose over way too easily. If you turn the gear around as some guys have done it stops the nose over but it puts the wheels too far ahead and when you land the tail will automatically drop and the next thing you know you are airborne again . What I found worked the best was too move the gear ahead just a bit so that the back hole in the gear lines up with the front hole in the fuselage . Then put a new 1/4" plywood plate in the fuse to hold the gear ..That moved the gear ahead around an inch and made a world of difference . The gear is now just far enough ahead to stop the nose over problem and not far enough to create the bounce on landing . The Pulse is one of the nicest planes to fly. They are so easy to land that I always say the plane makes me look like a good pilot .