The difference between the two reels is that the 4.6 is geared lower. This will be an excellent reel for throwing blade baits at night when you are creeping them in. You still have the low profile design which helps with hand fatigue and plenty enough power to reel in the double 12's and 13's.
I would have loved to come down and ice fish with you guys but I have been crazy busy making baits. I will have an excellent selection of bucktails and spinnerbaits at the MN Muskie Show this year.
If you are looking for a fall trip let me know. I have a few days open in October over MEA.