I have tried mono, fireline, and tuffline on all my reels and found that on spinning reels I prefer mono, and on my levelwinds tuffline has outperformed both fireline and mono(maxima) by far. For the fraser, tuffline is great for the reasons listed in some of the earlier posts. However, I have found that tuffline has also been excellent on my lighter levelwind(vedder, chehalis, squamish, ect...). I find that the low diameter of the line allows me to fit much more on the spool, if I do tie into something large the odds of getting spooled are much lower. The small diameter allows more finesse and lets me cast farther, and because the line floats I can mend the line and maintain contact with the float. Since I use my thumb to brake the spool when casting and often to brake a fish, the texture and feel of tuffline is great(soft and supple). It has no memory whatsoever, unlike mono and even fireline, so it comes off your spool nice and straight. And I have found that if I get a nest then the tuffline is far easier to free up. Also, the stuff is bloody tough! I always get a kick out of guys using the whole "ethical" argument against braided lines in smaller water. In my opinion a braided mainline is a far more ethical choice than a mono mainline (I had better explain this before gooey jumps all over this one...

). The rig I use with the tuffline for shortfloating is to run the float on the tuffline, below that a small sliding egg sinker and rubber bumper(saves wear on the knot), swivel, leader (18-36") and bait / lure. Assuming that you are using a proper leader (8-12lb mono) then you should never break your mainline. I fished the whole season without loosing my weight and float once. If a fish breaks you off, then the fish will only be trailing a foot or two of light leader at most. Also, the better sensitivity lets you feel fish(bumps versus bites) and setting the hook is just a quick flick of the wrist. Fishing with the tuffline mainline I left far less line and lead in the water (snags) this year than any other, so in my view it was a much more "ethical" choice for a mainline. I don't think that I will ever go back to a mono for a mainline.