Making a "loupe"

[RoyB]

companies are selling spectra loops that they are calling 'Loupes' to be used to secure blocks to padeyes instead of using shackles or webbing loops. I don't believe that these are spliced- I think that they are made by looping strands of spectra around and around a form.

I just made one of my own by using a piece of Sampson coated single brade. I first made a loop, then made a locked Brummel, then buried each end till it was a good ways around the loop - ends were tapered over 2-3 inches or so. Then did a bit of stitching to secure it when not under load.

The diameter of the loop I made was about 7 inches.

Is there any reason why this loop would be significantly less strong than the material it's made from? Any reason why I shouldn't use this thing in a highly loaded application - like securing a Spinnaker turning block?

It's a whole lot cheaper than the made up 'loupes' and can be made in any size required though I wouldn't think any smaller than 6-7 inches diameter would allow enough bury.