Greg, I fly light sport now because it costs me over $400 a year to keep a medical. Not to mention the time off work to go to the doc. All because I have a minor medical issue and have past 40 years old. As for detecting problems, flight medicals aren't invasive enough to find anything of value. This case in point, he's an ATP with a first class medical. That takes an EKG to get every six months. How'd they miss the "warning signs" there? Simple, they aren't looking. The system is antiquated and ineffective.