The deckhands on the fishing charter party boats here, including the long range tuna trips, usually use diagonal cutters (wire cutters). I figured if they were good enough for guys who make their living on the charters that was a good solution for me too. So for years I have been using good quality diagonal cutters that have generally cost me less than $30 for a pair that will cut 80lb wire or 100lb mono. I will wear these in a holster or have the holster attached to convenient part of the boat. I carry a Leatherman tool in my tackle bag but this rarely comes out of its case when on the water.