I have Magibraid Spectra, 45#, on my Sealine-X 30 conv., and it's great stuff. It's flat, very greasy feeling, and a lot less prone to nasty backlashes than either Fireline or Spiderwire. I love Fireline in spinning reels; Spiderwire's coating comes off and gets messy looking, although there is no noticeable loss in strength.
What I like best about the braid and braid-like lines is the lack of stretch and small diameter. Some people hate it for the lack of stretch. The comparative value I've been advised to use is that braids average about the same diameter as a 60%-as-strong mono. Therefore, a 20# braid would be about the diameter of a 12# mono. But the different brands of braid seem to advertise somewhat different comparative size relationships with mono.
But all of them are hell to deal with when you get a knot, because your only choice is to cut it off and restring. The worst, IMHO, is when you create a wind knot with braid on a spinning reel, at the end of a long cast, that wraps around the outgoing line during the next cast.
Oh, and a braid backlash on a conv. will have you tossing an otherwise perfect Calcutta into the briny deep in a fit of pique.
Good luck.
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