Owning a small tractor is a blessing.

[BackRoad]

Better for the mount to have cratered rather than one of your tractor components...you found the best point to fail!

 

[Jstpssng]

Today my wife and I buried almost 2000' of wire for our underground dog fence using something I cobbled together out of a cheap Amazon subsoiler, some conduit, and a few hose clamps. Worked like a champ The dog fence company quoted me $2200. The first photo is stopping to splice the wire after the first 1000' roll ran out.

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I sharpened the leading edge of the subsoiler and it cut through some pretty hefty roots without a problem but if I had to do it again I'd buy a better quality subsoiler that mounted directly to the 3 point quick hitch instead of having the intermediary Chinese receiver. The receiver mount isn't made to take the kind of forces involved in cutting roots and I had to stop midway through and straighten it out on the hydraulic press and re-weld it.

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That surely beats a shovel! That's a long ways to bury wire no matter how you do it!

 

[CalG]

When "trenching" wire, It would seem that a first pass with just the tool would be justified. A second pass to lay the wire.

I've made up a similar tool using the the box blade scarifier. Makes short work of setting asparagras or raspberry rows. I haven't had to "plant" cable.

Had you considered the "HALO" gps dog fence system?
As of this evening, we are "sitting" my son's dog. They have her collared with the Halo unit. It does seem to work.