To properly cinch down 80 pound mono, you are definitely going to need pliers. I really dont know if I could cinch down an 80 pound 4 turn uni with my bare hands and would probably not get it quite right with gloves on either.
The TR knot is a hybrid knot that takes the best qualities of the FG/Sebile/Delph knot and combines them with the Uni Knot. I came up with this knot because I really liked the FG/Sebile/Delph knot, but it would not work well with some brands of braid combined with some brands of fluorocarbon. When the FG knot is able to grab, it is the strongest connection, in my opinion, but I experienced some frustration with a few brands and finishes.