I personally think the key to fishing mid winter mille lacs walleyes/perch is to get away from the noise/people. You have the tools to move anywhere on the lake (use common sense around heaves/cracks) with the sleds, portables, and gps. Just about everyone else fishing the lake has the same technology, but the good thing is not every spot is being fished. Look at the GPS structure on your phone or GPS and pick out something out of the ordinary on a piece of structure. Outside turns, inside turns, tighter contour lines, or any bump in a countour line. Fish these spots for a short period of time, like max of 15 minutes. If you don’t see any fish or activity on the flasher move. Keep drilling and keep moving, you should be able to scrap up a decent bag throughout the day for your efforts.
The area of Hunter Winfields should be decent for perch fishing this time of year in the deeper basin, like 30 foot or so, perch are here one minute and gone the next, so fish them fast. Pay attention when you catch a jumbo, if they are spitting up bugs that is a good sign, your more than likely close to an area where bugs are coming out of the mud bottom.
Make sure your auger is topped off with gas because you will be drilling a bunch of holes.
Have fun fishing, report back.