The Shimano Scorpion MG takes the already proven Scorpion platform and reduces the weight by over 2oz.  The reel is made of a lighter Magnesium allow as opposed to Aluminum to create the drastic weight loss.  The reel still features the 4×4 SVS externally adjustable brake system and ported whiffle spool.  The handle is further ported for weight reduction, but the knobs remain the retrieve specific contoured knobs.  The 1001 model is left hand retrieve.