I just don't get the myths that are out there. My old 385ci 5.565" rod engine is still running to this day. It has been together for over 6 years and has been ran pretty hard. I used to shift it between 6300 and 6500RPM. My buddy bought it from me and now it's in his Nova, he has a bad habit of over reving the engine (stepped up from a 327 and still has not got the hang of how fast the 385 revs).
I bought into the hype and pulled that engine to install a 6" rod 383", guess what, same heads, headers, car, gears, etc.. ran the exact same ET. As far as 6" rods only lasting 15 passes, that is hog wash. I am still running the 6" rods (only because they were bought and paid for) in my current 388 with a blower on it. Lots of street miles and everything is still happy.
Moral of the story "Don't believe the hype". Use a good quality rod that will fit your engine and worry about things that really make a difference.