Unicender quesitons

There was another recent post about ascenders, someone was looking for an ascender for footlocking into the tree. The unicender was recommended by a few different people for what he was looking for.

I am confused: He wanted to footlock up the tree, most likely DdRT like the majority of us use, and this tool was brought up. I am looking at this, but I do not see how it is possible to footlock up a double line with the unicender. Am I missing something?

Furthermore, the Sherrill description says how you can ascend into the tree and be already set up to climb, with no dangerous changeover at the top. How is this done using DdRT, if you are not setting your false crotch from the ground? Again, am I missing something?

Another consideration I am having is the durability of this tool. Granted, I have not held one in my hand before, but it sure seems like there are many moving parts, plenty of new areas for failure in the climbing system. It looks like it is a chain, riveted together to form the string. I am seeing how just one point of failure on the unicender can cause a serious accident. If just one of the rivets fails, the system will fail the climber.

Lastly, the price tag is pretty steep. With that price, I would expect this tool to outlast the time span mentioned online before it needs to be rebuilt.

So, for a DdRT climber only, is this really a much better tool, simplifying the system? My beeline with my hitch climber seems to do everything that this does, with less areas of potential failure and a much lower cost. What is this tool going to do differently for me using my current set up and techniques?

If I could footlock up a double line with this, it would seem to be a no brainer tool to add to the collection... But, I do not think this thing can do this, as was kind of mentioned it could do in the other post topic.
 
Seems like SRT ascent/ descent options are one area that outperform a hitch/ tender pulley.

Inspection is important, as with all gear.
Seems like a worried person would use a footlock prussic as back-up, but would need both hands for descent.
 
The materials are stout and durable. Our lives are dependent on many more fragile bits and bobs that we don't pay attention to.

I would NEVER try to advise the purchase of the Uni for someone who is comfortable on DdRT. The hitch/rope combos are pretty well fine-tuned.

Like Don Blair said about the Lock Jack, 'It's an expensive replacement for a free knot.'

Now...on SRT...it is the best tool in the world!
 

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