Yes , we had Magnaflux and Zyglo ( as well as other ND testing) at the Aerospace Company I worked for and it was real nice. I am a Tool Grinder and we used to have a red dye that we sprayed on brazed carbide tooling to inspect for cracking after braze. I would ride this bike , with a new fork , anyway, as it is a nice bike and the head tube ( if it does crack ) will do what it does. I don't think it would cause a crash , you will feel it right away. My friend was going down State Street in Santa Barbara when he noticed it and pulled over. I have seen a lot of frames that have had front end damage and the Schwinn Circuit made of Columbus tubing and Tange fork was a first. I just thought I would mention it. Joe