I have searched and cant find exactly what I am looking for.

I have a WB Superfly and have some questions about how everyone rigs the doors. I currently have 4' lines of zing-it (or whatever you call the yellow tarpline from Warbonnet) connected to each door, but am wondering if there is any hardware that others have used to make the doors easier to open and close to get out. I am thinking of using some small Sbiners to connect to the guyline and open and close the door by connecting the sbiner to the tieout on the door. Any pros/cons of using this method, what size sbiner would work best?