i'm unconvinced. EPO was undetectable, but not anymore. new undetectable substance would run the risk of being detectable in a few years. who would ignore whistleblowers today? and the USADA did bring the hammer down on LA at some point.
sure, they pay off is high, but the risk - at least in cycling - is even higher, exactly because they've been caught once and now all eyes are on them. if pog gets popped, nobody will trust cycling to be clean ever again; it's hard enough today, as this thread proves.