I know this later in time than original post but I couldn’t agree with Ron T more! Decided to try TopKnot moreso as a value purchase ($10 for 200 yards). The line diameter per pound test is much smaller on TopKnot versus Red Label, as well as Berkley 100% fluoro; just like the same # offering from Sunline or Seaguar. I’d def rank TopKnot above Red Label & berkley 100%, and in about the same as Invisx. Maybe not quite as great as sniper but close enough that I’ll continue to buy TopKnot. Although I haven’t yet used it in 8# or 6# as a leader spinning setup, I have used 10# and was happy with it too. Hopefully I can keep getting this line at the great price I am now. It really has been a good line for me so far. Used it all of last season.