Straigtline
http://www.slsports.com/img/wake/big...xe-knotted.jpg
I use the T-handle or Knotted rope (prefer knotted). Absolutely no chance of getting an arm/leg/hand thru a handle. I cringe when I see others using old wakeboard handles with rope for surfin...Your taking a Huge chance in my book. Not worth chancing IMO. Accidents can and do happen, Im not willing to chance ripping someones arm/hand/leg/foot completely off or mangling someone cause it got stuck through the handle.
friendly reminder:
Dont coil it either when your choking up on it to get closer in the pocket. Your creating a loop de loop to put your hand/arm/let if and when you crash. (And all newbies are gonna do it...crash)