Hey Bill, I attached mine to the hulls. This absolutely minimizes any interference on the tramp. It worked out fine for me. It looks a little complicated but is actually quite simple. The extra bungee length also allows you to move as far aft as needed without the resistance of being pulled forward.
Hey DavidBell47, I really like your setup and while I'm my own restoration project I figure I should implement this. How far back from the shroud anchor point did you mount the rear set of trap lines and do you know how many feet of shock cord you used for this?
The distance from the shroud mount to the skipper's shock cord connection will vary. I made my assessment based on the size of my crew. I would recommend about 18 inches but if you have a "tree trunk" for a crew, you may want to go a little further.
You may want to acquire approx 70 feet of 1/4 inch shock cord as each cord (2 cords) will have to stretch across the beam 3 times. You will use less than that actual length as you will have to add enough tension to each side so that the cord will reach from mini block that's attached to the hull to the trap wire itself. I also looped each end of the shock cord and clamped the end with hog-nose clamps covering the clamp with friction tape to prevent any possible injury.
See pic below for approximate distance.
Also know that this setup is much easier to rig, as your return system, once constructed, is already in place. All you have to do after stepping the mast is to extend the shock cords from their unextended position to the trap wire, respectively.