new QTH, new antenna...

[KJ3N]

that is what I did at the old house, but I made a multiband dipole. I needed to limit the copper running through the air here so that is why the OCF.

Strictly speaking, the only reason to use an OCF is to be able to match the antenna on several bands using coax. Since you're feeding the antenna with ladder line, there's really no reason to do anything other than the standard dipole. Just make sure you have enough length for the lowest band you plan on operating.

The only difference will be that I have major (old growth) trees where I will launch paracord into the trees. On the end of the paracord, tie off to a dogbone.

I would tend to use UV resistant Dacron rope. Many ham stores sell it. My favorite size to use is 3/16 diameter. It's got plenty of strength and holds up very well.

One issue I might have is stretching the copper over the years. Copper-weld wont stretch, but the #14 bare that I plan to use might. As I type this, I just might change out the soft copper for the copper-weld.

It's not going to make that much difference if the copper stretches. The AH-4 will simply adjust accordingly. As a matter of tensile strength, the copper-weld is certainly more durable.

I used to make my 80m dipole with stranded copper from places like Home Depot, but the soft copper kept breaking every 6-9 months. The current 80m dipole is made with copper-weld and has been up for over 4 years now.

Oh, and using bare wire as opposed to insulated isn't going to make than much of a difference. I've always used insulated.