Whenever I picked up a ground pile with an auger and drag, you need a good sized pile where the drag drops the grain and the auger picks it up. It is usually a couple feet high and about six feet in diameter. The drag will do a decent job of sweeping the ground within an inch or so but a lot of hand shoveling is involved to clean the transition area. A setup like you are suggesting would leave a windrow of grain behind as you traveled the length of the pile. With the Brandt, the transition area would be the cleanest area.

Of course the best solution is to have sufficient storage but sometimes the need arises to clean out the machine shed and pile it there, when that fills up, then we open the "Big Sky" annex and deal with all its problems. The one consolation is that it isn't the worst thing in the world to have all your storage full and a bunch extra that you will need to figure out what to spend it on.