I do all of my big seeds by hand out of a 5 gallon bucket. I did my share of spilling seed on the ground trying to get it into an earthway, only to have to fill it 4+ times. Fling enough seed by hand, and you can cover just as well as an earthway. I've got a pile of broken earthways laying in the woods somewhere. They usually sailed into the brush as far as I could throw them. If you need hand/bucket broadcast practice, I recommend using pell gypsum.
For small seeds, that blower of mine cannot be beat. It throws farther, more evenly, and at a rate that can be dialed so low, you could spread a cup of clover seed over an acre if you wanted too. You can also open it up wide and go once you get a feel for the calibration. I just did a blend of flower seed, sweet clover, and flax into my select cut areas. No walking among the downed trees looking for a broken ankle, I just walked the perimeter and pointed that blower into the pile. I also whipped up a bucket mix of sunflower, sorghum, and buckwheat and hand flung that into my medium white plot.