Straight from Ryan ... "The Lizzy fin has plenty of base, but a narrow and flexy tip. Suited well for mini gliders and all kinds of single fins, not surprisingly, specifically the ThickLizzy.  Based from the v.Bowls fin but aimed at a little lighter approach.  It is less drive and power-hungry than the beefy v.Bowls fin, and equally happy to be heavily pressured as it is to be grooved with ease."