Mike McGoldrick is a double under manic, he can do hundreds in a row and it looks like he's barely trying.  

When I do double unders it looks like I'm doing hurdle jumps while having an asthma attack, everything that can go wrong.... goes wrong.  

Me: weightlifting = good, double unders = bad.  

Mike: everything = good.  

Want to know how to do'em?  Watch the video!

Enjoy, 

Doug