"Timeless Fence" is an oxymoron. I would think twice about running wire through a hole in the fence post. First it would require
the post to be driven perfectly to keep the hole in line with the fence or risk kinking wire or fraying rope wire. Also consider the problem
of a 'break and splice' Cotter pins will work as will larger paper clips or even a length of wire looped through the hole.
I use 3' quarter inch, 4' half inch and 6' nine sixteenth fibre posts and where applicable will use high tensile wire in places
that lend themselves to a permanent location. I also use pigtail posts for braces on the 9/16 when needed. For gateways or
pass through I hose clamp a 1/2 inch post on top of 9/16 after driving the larger post which allows me to simply make an
overhead of passway for the cattle to access a different area. To close off the gateway simply run a short length or wire rope
with an alligator clip on either end. Other than around the corral area and proprty perimeter I only use single wire at about
30". Yes, calves may go under for a while but they will come back to suck and in very short time will not go under wire.
I use an 8-10 joule energizer with 4 ground rods. I recommend shutoffs in key locations if rotational grazing.
While I haven't used them, other than their catalog for some ideas, I would recommend Power-Flex out of Seymour, MO.
Part of that is due to being several hundred miles away. (Don't ask)
I guess my main point here is to use your own imagination with your electric fence projects. I feel we are still in the very
beginning of what can be accomplished with electric fencing and I would include (no or hidden barrier fencing) .
which is a horse of a different collar if you will!
And as I have said on these pages many times, Never, under any circumstance walk a cow over a wire. <period