You may have read this in another thread. But, regarding Speedliner, what is it? Their website doesn't say. Is it polyurethane like LINE-X and Rhino or is it a paint, or what? You might want to check it out before you make your decision. Speedliner has almost twice the tensile strength of Rhino but they have about the same softness. If it is a polyurethane, ask if it contains polyurea. Polyurea is an expensive ingredient but makes for a much harder and tougher
liner. (LINE-X has polyurea, Rhino does not.)