I do not think that Super Record crank arms are flawed in any way...nor is my opinion really valid in any way on the subject, as I am not an expert. However, the discussion has come up from time to time, and because of that, I offer this interesting picture of Laurent Fignon, sitting in the street -- appearing to recover after a left crank-arm failure (around the spindle). Worst part is, it appears he was off the front...or at least in front of the last group!
Again, just an interesting picture.
http://www.dragonswest.com/
Stephan Andranian
Costa Mesa, CA
http://www.GitaneUSA.com