Ken: No, I never did try the EEL cords. My wife told me that "we ain't havin no EEl's in the house honey", and that was the end of the EEL's. Whales have a higher WAF, I think, and I would recommend that BMI's next triumph be called The Dolphin, so that more of us will have a chance of getting them into our systems. If my wife were into piercing, Goth and tattoos, then it may have gone the other way. I am also curious though as to how the two would combine synergy wise in a system as the combo would be much easier on the budget. ASA: I have only used the 5' version.