ET,
Answers:
1) Regardless of the weight you'll still have some electrical connectivity. I use a Plain Jane 15#r's connected to a 300# s/s snap swivel instead of the expensive Scotty snaps i.e. Connectivity broken... The Black Box still charges the wires so you are not defeating the purpose at all. Just an extra measure I take.
2) Any hardware store will carry nylon line. Russ at Narrows Marina still has some I believe. There are numerous ways to connect... I like to ... First, from the "bitter end" of the wire connect a 300# barrel swivel and crimp. Tie an Uni Knot with 3 or 4 turns and secure...same for the snap swivel side. Burn the tag ends and place a drop or two of super glue on the knot. For under $3 you have a setup that will last for two or three season w/o having to replace everything.
3) Since the nylon stretches under the weight of a 15# ball, the nylon coils back to orginal stance immediately upon hitting bottom. This, in turn, signals better movement of the dr booms. As far as a hook set, I make all my own releases to length. Instead of 150-200# test mono for the release length, I use 1/16" nylon cord. The reason for doing this is two fold: (1) thinner diameter- less resistance in the water. This offers not even the slightest coils resistance as mono- straight in-line with the wires and no initial 1 to 2 jerk for the release. (2) more durable than mono with fewer tangle around the wires. I was a bit skeptical at first, but I noticed a difference quickly.
Give 'er a go. I think you'll be hooked
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"If you are not scratchin bottom, you ain't fishing deep enough!" -DR
Puget Sound Anglers, Gig Harbor Chapter