Datok,
That's a fun idea tying a rope the entire length of the wreck....
I done that too on a deep sea mount before I had this unique parachute float powered by 2 x 68gram C02.
Get a short 1,000lb Kevlar, measure the length. Crimp one end to the shooting line and crimp the other end to the anchor point of the C3. This is an insurance when the 5" bungie break. This length of the 1000lbs Kevlar must be a bit shorter than the 5" bungie when maxed stretch....this way it takes the beating first. Use double loop knot and a single crimp on Kevlar or twin crimps on each end, kevlar is too slippery to be single crimped...power glue or not, it won't hold.
You also have the choice of getting a Riffe breakaway kit if you have the rope set up as such, easier on the gun too, it won't get damaged when dragged around the wreck. Use heavy duty clip, don't use fisherman type of snap swivels, it won't hold.
Anyway keep us posted or at least PM me. I never seen Cobia that big in my area....lucky you....
....but I have Dog Tooth Tuna.....
.
Me hunting tomorrow.....yum yum.
