I have had some bad kits and made them better. To me that is some of the challenge. But my first real surprise was in the late 80's. I finished the Revell 70 Superbird and had built the MPC 71 Superbird. I still have both those builds today. I wanted to complete the set and got the AMT 69 Daytona. What a shock that was and the directions even listed the use of putty. I did build it but it became a donor later on.