I'm looking for a new cranking rod for medium to deep diving crankbaits. I'm partial to St. Croix rods and trying to decide between the LTBC70MHM "Big Cranker" and the LTBC710HM "Magnum Cranker". The Big Cranker is rated for 3/8 - 1oz lures, while the Magnum Cranker is rated for 1/2 - 1 3/8oz lures. I primarily want to use them for deep divers like the LC Flat CB D20 ,Spro Little John DD, and Rapala DT20. I'm a little concerned that that the Magnum Crank might be overkill. Does any have any experience or recommendations about these rods?