If you are talking about what brand, I use Maxima and Rio. The Maxima is the standard clear mono from 8-10 lbs test and the RIO is the Powerflex 1x 13 lb and both seem to work well with blind eyes tied with dacron or similar.
I simply use a standard clinch knot to attach blind eye flies to my tippet and I've never had a failure of the knot or the blind eye loop. I use clear 20lb braided mono for my blind eye loop, attach it to the hook with either Danville's Flymaster or Uni 8/0 thread, and then coat the thread wraps with head cement to lock it to the hook.
Flytyer: thats nice to know. I have always been a little afraid to use a clinch as i worried about it cutting through the loop. I have been using palomars to avoid this. I wondered if there was a standard out there that I was unaware of.
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