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I posted this on TCI and will post it here. These NOS connectors have the desired ends (ground cones) in them for the ultra-flexible metal conduit... Ebay Item

I'd predict you'll eventually have to abandon the backpack concept unless the working assembly could alternately be pulled around front for inspection. Those ratcheting wrenches could have footstraps hung from them.

So what is the measured gap? Even the Petzl datasheet doesn't say. It looks like it might be something like 9mm.

The sad fact is that the two terms are used interchangeably by most tree people to mean either secured foot-lock or doubled-rope. No tree person gives even a thought to the mountain climbing two-rope meaning.

So the end gap between the plates is too small for the rope? You can't add or remove the pulley from the rope in mid-line?

So a Petzl Fixe pulley won't even fit over a rope? I've never looked at one up close but I just presumed that the end gap would be large enough.

Moss has a video posted demonstrating the technique. Have you seen it? Moss Video

You could quibble about the top point he makes here. I don't think this is correct. A kilogram is not defined as a force. It is a measure of mass. Something that is 1 Kg on earth is still 1 Kg on the moon. In the English system you would convert kilograms to Slugs. The "small deviation" is due...

When I first heard that Petzl was introducing the "RIG" I thought it might be a GriGri for 13mm -- but no. The "Rig" is just their "professional series" GriGri and only rated up to 11.5mm (0.5mm more than GriGri).

Well, I'll have to search online. I bought some of the conduit last Summer but the ground cones I remember someone saying were not available in quantities less than 100. Buying the whole 5333 connector is about $5 extra for each ground cone.

Moss, if you have bought a 100 of these I would be glad to buy a few off of you. I had thought you probably used the 1/2" version.

Oh, you want a temporary cheat? Go get a length of cardboard. Roll it around your rope and wrap some duct tape around it. This idea courtesy of TCC's JimK.

http://www.newtribe.com/catalog/product_info.php?cPath=31_57&products_id=281 A standard $20 leather sleeve will certainly outlast them but for ease of installation and low friction these are really nice.

Hmmm... I've heard of Portage... not related to climbing but... http://www.portagetoportage.com/

So Moray, will the typical hitch slide down and save your spine?

If you have poor judgment you'll probably kill yourself one way or another and probably while out driving. If you have good judgment then you ought to be able to tell if the thing you made is safe or not and test it if needed.

Heck you can even google "nick splice" and find him.

Ask Nick.

I don't climb SRT but I thought the favorites at the moment were Poison ivy or Tachyon or one of the static kernmantles like Sterling HTP.

The only thought I would have goes back to the question of stiffness which was mentioned earlier in this thread. In order to get the FS into position and to retrieve it (from the ground) you might need to stiffen the ends of the rope or webbing in some manner to make it less likely to get stuck.