Hey, so I was about to make a whoopie asl and had one of those stupid moments where I thought I could do better, on the upside it works but then again it is my first experience with splice-able rope, (amsteel 7/64) it only arrived 20 minutes before I started it!
Also If someone else has done this before, throw me in that direction please!
Basically what I have done is made a 24 inch dog bone and taken a 3 yard section with a fixed eye in one end, prussic looped one end of the dog bone to the large section then put a 12 inch bury(?) with a tail coming out like a whoopie or constrictor(?) through the dog bone sorry not that sure of terminology yet!
This might Help.