Wow,
That hydraulic PHD you have is really good looking and seems rugged too. However, it's expensive when you add everything up. Looks like you got over $2200 with your set up, and that probably doesn't include a couple more hundred bucks for shipping (for a lot of us). If you don't have the front hydraulics, you're looking at another $1,000 bucks or so to get that set up too.
When I bought my Leinbach 7300 including auger, it cost me $400 as an add-on with the tractor purchase. That's a far cry from having your set up plus adding the tractor hydraulics up front. With that said, If I knew I was going to have front hydraulics set up, and a great need for the PHD, I might have considered it up front. I just didn't know any better then. Nevertheless, it's a lot of money altogether though. Since I already have one, it would take a lot to get another hydraulic one now.
About running the PHD, I find slower rpm to be better and safer. The pipe wrench is a good alternative if you are not in the business of installing post holes. I also try to ease the auger in to keep it from getting stuck. Going slow helps, but generally it's too late. I end up snapping the shear bolt before I realize it's getting stuck, even at slow speeds. Back to the thread question ... I wonder if I can build or buy a reversing tranny that hooks on to the tractor PTO? If it costs me $500 bucks, I'd be money ahead. I could buy all the posts and wire with the $2,000 bucks I've saved?
...Just a thought?