Worst was a Midwest Stearman. NOTHING fit on that kit. The stringers looked like a snake after you put them in place since the notches were all off. A week of trimming and shimming had them fixed. The cabanes didn't fit. Had to bend new ones to get rid of the 4 degrees of positive incidence in the top wing.Best kit....Bruce Tharpe Super Flying King. Without a doubt the best wood kit you can buy. precision cut and sanded plywood, fantastic balsa!!