Overseeding with seed balls?

Has anyone tried overseeding their lawn by putting the seed into seed balls first (vs. just spreading the seed or some other traditional method)? 

I had many patches of "weed" grass and while the grass was dormant (late summer) I killed these off with glyphosate.  I was thinking that since only the weed grass was green (rest is pretty much brown, due to little/no summer irrigation) it would kill only the weed grass.  This pretty much worked, but in some areas I guess the regular grass was indeed alive and it was killed also.  So the lawn is covered with dead patches.

I know seed balls work well in the garden or with field crops, I would think they would work fine for grass as well.  So I'm going to give it a try.

Maybe you could try this method i described in another thread.

When i'm sowing seed mixes, i mix them with garden soil, add watter, so the thing gets muddy. It's a muddy liquid basically. That's how seeds get coated with mud. Then i just add more soil while mixing everything. When i get normal moist soil again i scatter it.

Both good ideas!  Post how it works out...

Well I am trying three things:

1. Just spread the seed with a spreader
2. Seed balls
3. Dry seed ball mixture (1 part seed, 3 parts compost, 5 parts clay soil), not wetted or made into balls

I did 1 & 3 the same day I made the seed balls.  I just put the seed balls down this weekend.

Results so far:

1. Working OK, grass is sprouting, I'd guess 25% germination on bare dirt.
2. Haven't been out long enough to sprout yet.  It takes a LOT of seed balls to cover an area so I'm not so sure that was a great idea.
3. Working really well, germination probably 90%.  I think I will do more of this.  When I spread it (by hand), the seed "winnowed" a bit but it seems to be working fine.  I'll see if this mix will go through the spreader.

The seedballs are sprouting now, they look like miniature chia pets.  But the seed+compost+clay soil mix is working the best, by far.