The Koya Lures MPD is a new large plunger shape that fits in with the Koya Lures Marlin arsenal. It is mostly a single tapered plunger that has a fairly steady taper towards the slanted nose with a very subtle rear taper right before the skirt saddle. Has 16" sized skirt saddles. Difference in shape between a Large Poi Dog and teh MPD has both to do with the girth and taper depth. The Large Poi Dog has more girth and weight as well as a deeper front taper than the MPD but is otherwise in the same class of lure.